Digital Yarn Twist Tester
Digital Yarn Twist Tester
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    Digital Yarn Twist Tester
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    Digital Yarn Twist Tester

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    Digital Yarn Twist Tester

    Digital Yarn Twist Tester

    Digital Yarn Twist Tester

     

    A Digital Yarn Twist Tester is a laboratory device used to measure the number of twists (turns) per unit length in a yarn. It’s crucial for evaluating yarn quality, strength, elasticity, and uniformity. The digital version offers precise, automated readings for both S-twist and Z-twist yarns.

     

    Purpose Digital Yarn Twist Tester:

    To determine twist per inch (TPI) or twist per meter (TPM) in single and plied yarns using direct untwist or untwist-retwist methods.

     

    Applications Digital Yarn Twist Tester:

    Quality control in spinning mills

    Yarn standard testing (cotton, polyester, blends)

    R&D in textile manufacturing

     

    Working Principle Digital Yarn Twist Tester:

    One end of the yarn is clamped, and the other is rotated to remove or measure twists.

    The tester counts and displays twist digitally based on length and rotation.

     

    Benefits of Digital Yarn Twist Tester:

    High Accuracy – Digital readout ensures precise twist measurements.

    Quick Testing – Faster than manual methods, increasing lab efficiency.

    Versatile Application – Suitable for single, doubled, or plied yarns.

    Reduces Human Error – Automated counting improves repeatability and consistency.

     

    Supports Both S & Z Twist – Measures both twist directions accurately.

    User-Friendly Operation – Intuitive controls and clear display simplify use.

     

    Features of Digital Yarn Twist Tester:

    Digital Display – Shows real-time twist count and length.

    Motorized Rotation- Smooth, adjustable rotation speed for controlled untwisting.

    Dual Clamp System – Holds yarn securely to prevent slippage.

    Length Measurement Scale – Built-in ruler or encoder for precise yarn length setup.

     

    Auto Stop Function – Automatically stops when yarn is fully untwisted.

    Selectable Units – Twist readings available in TPI or TPM.

     

    How to Use Digital Yarn Twist Tester:

    Prepare the Yarn Sample

    – Cut a yarn length (e.g., 250 mm or 10 inches) as per testing standard.

    – Make sure it’s free from knots or damage.

    Mount the Yarn   – Fix one end in the stationary clamp and the other in the rotating clamp.

    – Ensure the yarn is straight and under slight tension.

     

    Set the Gauge Length – Adjust the length scale or input it digitally, depending on the machine.

    Select Twist Direction – Choose S or Z direction based on the yarn’s twist.

    Start the Test – Activate the motor to untwist (or untwist-retwist, if applicable).   – The display shows the number of rotations. Read the Twist Value  – The twist (TPI/TPM) appears automatically based on the set length.

     

    Stop and Unload – Once reading is complete, stop the machine and remove the yarn.

    Record the Result – Note the reading for documentation or further analysis.

     

    Maintenance Tips for Digital Yarn Twist Tester:

    Daily:

    ☐ Wipe down the machine and clamps to remove dust or fibers

    ☐ Check for yarn residue on rotating parts

    ☐ Ensure display and buttons are responsive

     

    Weekly:

    ☐ Lubricate rotating spindle lightly (if required)

    ☐ Inspect clamps for wear or misalignment

    ☐ Test motor rotation for smooth operation

    ☐ Check twist direction selector switch

     

    Monthly:

    ☐ Calibrate digital display if twist readings drift

    ☐ Inspect electrical wiring and connectors

    ☐ Tighten any loose screws or panel parts

     

     

    Safety Tips:

    Avoid Loose Clothing: Prevent getting caught in the rotating spindle

    Use Proper Yarn Tension: Overstretching may snap the yarn or damage clamps

    Handle With Care: Avoid rough handling of the digital panel or twist arm

    Power Off When Not in Use: Prevents accidental operation

    Follow Manual: Refer to user guide for specific calibration or cleaning procedures

     

    Digital Yarn Twist Tester – Maintenance & Safety Checklist

     

    Daily Maintenance:

    ☐ Clean clamps and body surface

    ☐ Remove lint or yarn fragments

    ☐ Verify display & control buttons function properly

     

    Weekly Maintenance:

    ☐ Lightly lubricate spindle if required

    ☐ Inspect clamp alignment and grip

    ☐ Test motor for smooth, silent operation

    ☐ Check twist direction switch

     

    Monthly Maintenance:

    ☐ Calibrate twist reading accuracy

    ☐ Inspect cables and connectors

    ☐ Tighten loose hardware

    ☐ Run full test to ensure system performance

     

    Safety Checklist:

    ☐ Keep hands clear of rotating parts during testing

    ☐ Avoid loose clothing or jewelry

    ☐ Do not overstretch or over tension yarn

    ☐ Power off when cleaning or not in use

    ☐ Follow the machine’s manual for calibration and service

     

    Basic Troubleshooting Guide – Digital Yarn Twist Tester

     

    Issue: No Power / Display Not Turning On

    –  Check power cable and socket

    –  Inspect fuse or main switch

    –  Ensure emergency stop isn’t engaged

     

    Issue: Twist Count Seems Inaccurate

    –  Recalibrate the machine

    –  Verify yarn length input is correct

    –  Check for slippage in clamps

     

    Issue: Motor Not Rotating

    –  Ensure motor switch is ON

    –  Inspect motor connection and wiring

    –  Test rotation manually to check for blockage

     

    Issue: Display Freezes or Buttons Unresponsive

    –  Restart the machine

    –  Check control panel for dust or moisture

    –  Contact support if issue persists

     

    Issue: Auto-Stop Not Working

    –  Ensure length and twist direction are set

    –  Check sensor alignment or damage

    –  Reboot and re-run test

     

    Scope of application
    It is used for testing the twist, twist irregularity and twist shrinkage of all kinds of yarns.
    [Related standards]
    GB/T2543.1/2 FZ/T10001 ISO2061 ASTM D1422 JIS L1095 etc.

     

    Technical parameters
    1. Work mode:Computer program control, data processing, printout results
    2. Test methods:
    A, Average twisting slip elongation
    B, Average maximum twisting elongation.
    C, Direct counting method D, twisting twisting A method
    E, Twisting twisting B method f and three times twisting twisting method

    3. Sample length:10、25、50、100、200、250、500mm
    4. Twist test range:1~1998 twist /10cm, 1~1998 twist /m
    5. The extent of twist removal:Maximum 50mm
    6. Maximum twist measurement.20mm
    7. Speed:600～3000r/min
    8. Pre tension:0.5～171.5cN

    Digital Yarn Twist Tester

    Digital Yarn Twist Tester

    9. Size:920×170×220mm
    10. Power supply:Ac220V 50Hz 25W
    11. Weight:16kg

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    3. Stop and Remove Package - Once winding is complete, stop the machine and remove the yarn package carefully.
    4. Maintenance - Clean the machine regularly and lubricate moving parts as needed.
      Specifications of High Speed Hard Winding Machine: - Winding Speed: Typically 1000 to 3000 RPM (varies by model) - Package Type: Conical or cylindrical yarn packages - Tension Control: Adjustable mechanical or electronic tension system - Drive System: AC motor with variable frequency drive (VFD) for speed control - Power Supply: Usually 220V/380V, 50/60 Hz - Package Weight Capacity: Depends on model, generally up to 2 kg - Machine Size: Compact footprint for space-saving installation - Control Panel: Digital or analog with start/stop and speed adjustment - Safety Features: Emergency stop, yarn break detection, overload protection     Troubleshooting Tips: - Yarn Breakage: - Check and reduce tension; inspect yarn for weak spots. - Clean guides and rollers to remove any debris. - Uneven Winding: - Ensure correct threading path and tension balance. - Adjust package build-up mechanism. - Machine Not Starting: - Check power supply and emergency stop switch. - Verify control panel settings.   - Excessive Noise: - Lubricate moving parts and tighten loose components. - Inspect bearings for wear. - Package Slippage: - Secure cone properly and check tension settings.   Features of High Speed Hard Winding Machine:
    1. High-Speed Operation - Capable of winding yarns at fast speeds (up to 3000 RPM) to boost productivity.
    2. Precise Tension Control - Adjustable tension mechanism to prevent yarn breakage and ensure tight winding.
    3. Automatic Package Formation - Uniform, firm package build-up for consistent yarn quality.
    4. Versatile Yarn Compatibility - Suitable for cotton, polyester, wool, and blended yarns.
     
    1. User-Friendly Interface - Easy controls with digital or analog panels for speed and tension adjustment.
    2. Robust Construction - Durable stainless steel or metal frame for long-term reliability.
    3. Safety Features - Includes emergency stop buttons and yarn break sensors.
    4. Compact Design - Space-saving structure ideal for labs and production floors.
    5. Low Maintenance - Designed for easy cleaning and minimal upkeep.
        high-speed hard winding machine is used to produce hard cone packages for knitting machine, shuttle loom, warping machine and hosiery machine. It is an ideal winding machine for cotton threads, hemp threads and chemical fiber yarns. TECHNICAL PARAMETERS Grooved drum O/D 82mm, lead 2.5 (turns) ×147, angle: 0° Take-up tubes Cylindrical or cone with conicity of 3°30′, 4 °20′ Bobbin length Standard 170mm, customized range: 170-280mm Yarn length control Electronically set the winding yarn length up to 999999m according to the final package. Electric waxing device (optional) Square wax piece is used for uniform waxing, a set per spindle Slow start Ensures a slow and stable start to improve the winding quality. Counterweight yarn brake Prevent the yarn from shaking during the feeding to provide suitable winding tension. Electronic tensioner Tension plate Number of spindles per section 12 per section Number of spindles, max. 120 Drive Individual variable frequency motor per spindle Max. winding linear speed 1100 m/min, individually controlled per section, frequency control Traverse Standard: 147mm Creel balancer Winding tension is controlled by a spring balancer Yarn detector Photoelectric sensor Package diameter Max. 280mm Start/Stop Membrane switch control, touch screen Vertical anti-patterning device Computer controlled Vacuum cleaner/blower Optional, 1100W (cleaning power) Power consumption 60W/spindle (at the highest speed), including the power of cleaner motor Power supply 3-phase 380V 10%, 50/60Hz, 220V, 440V Weight (12 spindles) 350kg Dimension (12 spindles) 2250mm (L)×1100mm(W)×1400mm(H) Cleaner weight 132 kg, depending on the number of spindles Weight and dimension of the electricity box 45kg, 700mm(L)×300mm(W)×1320mm(H)   FUNCTIONS The winding speed can be set and controlled automatically by the computer, offering a maximum speed of 1100 m/min. Advanced yarn cleaning, tension device and photoelectric yarn detector avoids the yarn loop. Accurate and sensitive speed controller ensures even and consistent winding length (weight). Electrically rotary waxing ensures the waxing quantity and uniformity.
    High Speed Hard Winding Machine

    High Speed Hard Winding Machine

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    IR Dyeing Machine Dunlin

    IR Dyeing Machine Dunlin

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    IR Dyeing Machine Dunlin
    IR Dyeing machine Dunlin is Safe, high efficiency, environment friendly, energy saving, optimum for new dyeing small sample machines

    IR Dyeing Machine Dunlin

    24 pot 300 ml IR Dyeing Machine Dunlin Application  This machine is oil bath type infrared laboratory dyeing machine, it combine the advantages of traditional glycerol dyeing machine with common infrared dyeing machine together. It’s apply to dyeing and testing the color fastness of the knitted fabric, woven fabric, yarn, cotton, loose fiber, zipper etc. It was special design for dyeing industry, chemical industry, raw material, cloth which can simulate the production conditions exactly and reach the process effect. Used for simulate the dyeing process in actual production, even apply for the small-batch production. Characteristics  Safety, high efficiency, environmental protection, energy saving and consumption reduction, which can fully meet the requirements of dyeing and color matching experiments; segmented heating sampling experiments, segmented, uniform  dyeing and Permeability test, dye absorption rate tests of pH, temperature and bath ratio differences, concentration and other tests, etc. In addition, the machine is highly personalized, and can make different specifications of dyeing steel cups according to customer needs. Feature   Easy to operate, dye pot can be individually Turn plate removed to save waiting time. The ability to conduct the tests of various dyes and chemicals on dispersing, leveling, liquor ratio exhausting etc. l Special recommendation for “STEP DYEING "to select the best dyestuff and combinations for the most Suitable dyeing curve to achieve the highest efficiency and quality Different sizes of dye pots for various weight of samples with yarn or fabric holders to ensure the good leveling result .There will be no crease mark.  Suitable for low liquor ratio dyeing. Sample weight from 4g to 20g.  Special design for humanity, durability and easy-maintenance. Safe, high efficiency, environment friendly, energy saving, optimum for new dyeing small sample machines Product Parameter of IR Dyeing machine Dunlin specifically designed with a focus on human usability, durability, and ease of maintenance. It prioritizes safety, high efficiency, and environmental friendliness while also being energy-saving. This machine is optimal for new dyeing small sample machines due to its product parameter advantages. specifically designed to prioritize humanity, durability, and ease of maintenance. It offers a safe, high-efficiency operation while being environmentally friendly and energy-saving. This machine is optimal for new dyeing small sample machines due to its specialized features and product parameters.  Model : IF-24S Infrared Laboratory Dyeing Machine Key Specification Model : IF-12S IF-24S Staining cup number 12/24 Staining cup volume 300cc OR 425cc Control mode LCD Microprocessor type, programmable process number: 100(0—99), 100 programmable steps per process Heat method Infrared heat Temperature range RT - 140 ℃ Temperature control accuracy ±0.2 ℃ Heating rate

    0 - 3.5 ℃ / min Cooling rate 0.2 - 5 ℃ / min Cooling method Air-cooled Rotation speed 0 - 60 rpm Liquor ratio 1:5 -1:100 Power supply 1∮AC 220V 50/60HZ Dimensions( L x W x H) 670×670×780mm 860×680×780mm Weight 100kg 120kg Standard Accessories Cups 1set

    Put the test sample. Cups stand 1set Place where to put cups. Protective glove 1set To avoid to be hurt by HT cups. Model: IF-24SCapacity: 24 pots Brad: DUNLIN Origin: China

    Color dyeing tests for various dyestuffs of IR Dyeing machine Dunlin
    1. Step dyeing tests. C. Dispersing, levelling and impregnating test. D. High or low liquor ratio exhausting tests. E. Fabric steak and staining tests. F. Concentration tests and others. Protection and Safety gates to protect. Temperature control accuracy +/- 0.2degree
    Working temperature of IR Dyeing machine Dunlin 20 – 140 degree Heating rate of dye bath 0 – 3.5degree / min Cooling rate 0.2 – 5 degree / min Cooling method air-cooled / Auto Speed control frequency conversion Rotation speed 0 – 60 turn / min Microprocessor type Newhaven controller 99 programs each Program with 99steps. IR Dyeing Machine Dunlin
    IR Dyeing machine

    IR Dyeing machine

     
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    Spray Rating Tester
    Spray Rating Tester

    Spray Rating Tester

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    Spray Rating Tester

    Spray Rating Tester

    Spray Rating Tester

      The Spray Rating Tester is a textile testing instrument used to evaluate the water resistance or water repellency of fabric surfaces. It measures how well a fabric can resist wetting when exposed to a controlled spray of water, helping assess its performance in rain or damp conditions.   Purpose of Spray Rating Tester - To assess surface wetting resistance of textiles. - Commonly used for outdoor clothing, rainwear, tents, and performance fabrics.   Working Principle of Spray Rating Tester - A fabric specimen is mounted at a 45° angle. - Water is sprayed from a standard nozzle for a specific time. - After spraying, the fabric is visually rated based on the appearance of water drops and wetting.   Key Components of Spray Rating Tester - Spray Nozzle: Delivers a consistent, standard water spray. - Funnel & Reservoir: Controls the flow and volume of water. - Specimen Holder: Positions the fabric at a 45° angle. - Spray Stand: Ensures accurate nozzle height and positioning.   Standards Used of Spray Rating Tester - AATCC 22 - ISO 4920 - BS EN 24920   Applications of Spray Rating Tester - Rainwear and water-resistant textiles. - Quality control in fabric finishing. - R&D for performance apparel.   Benefits of Spray Rating Tester:
    1. Quick and Simple Evaluation - Offers a fast way to assess fabric water repellency without complex setup.
    2. Standardized Testing- Complies with AATCC 22 and ISO 4920, ensuring globally accepted results.
    3. Cost-Effective- Low maintenance and no power requirement make it economical for routine lab use.
     
    1. Improves Fabric Performance - Helps manufacturers develop or improve water-resistant textiles.
    2. Non-Destructive Test - Does not damage the fabric, allowing for additional tests on the same sample.
    3. Visual Grading- Easy to interpret using a standard spray rating chart (0 to 100 scale).
    4. Supports Quality Control - Detects finish degradation or variation in water-repellent treatments.
    5. Portable and Compact- Lightweight design allows easy use in various lab or field settings.
      Features of Spray Rating Tester:
    1. Standardized Spray Nozzle - Delivers consistent water spray per AATCC and ISO specifications.
    2. 45° Specimen Mounting Angle - Ensures uniform test setup for accurate and repeatable results.
    3. Stainless Steel or Aluminum Frame - Corrosion-resistant and durable for long-term use with water exposure.
     
    1. Water Reservoir and Funnel System - Provides precise water volume (usually 250 ml) for each test.
    2. Graduated Spray Stand- Fixed height (150 mm above specimen) for controlled spray impact.
    3. Detachable Specimen Holder- Easy loading and removal of fabric samples.
    4. Compact and Lightweight Design - Portable and convenient for both lab and field testing.
    5. No Electricity Required - Fully manual operation increases reliability and reduces operating costs.
      How to Use Spray Rating Tester:
    1. Prepare the Sample - Cut fabric to standard size (usually 180 × 180 mm). - Condition the sample if required (21°C, 65% RH for 24 hours).
    2. Mount the Fabric - Place the fabric on the specimen holder at a 45° angle.
    3. Fill the Reservoir - Pour 250 ml of distilled water into the upper funnel.
     
    1. Start the Test - Release the water through the nozzle; it sprays over the fabric for about 25–30 seconds.
    2. Inspect the Fabric - After spraying, visually assess the water beading or penetration on the surface.
    3. Rate the Sample - Compare the fabric’s wetting pattern with the standard spray rating chart: - 100 = No sticking/wetting - 90–50 = Partial wetting - 0 = Complete wetting
    4. Record the Rating - Document the spray rating for quality control or reporting.
      Spray Rating Tester, Water Repellency Tester Spray Reting Tester [Scope of application]: Used for the determination of moisture resistance (wetting grade) of various fabrics which have been or have not been treated with water resistance or water repellency. [related standards]: GB/T4745 ISO4920 AATCC22 JISL1092 etc. [technical parameters]: 1. Glass funnel:150 x 150 (capacity 500ml) 2. Specimen placement angle:The level is 45 degrees. 3. Distance from nozzle to sample center:150mm 4. Specimen diameter:Ф150mm 5. Size of water receiving pan:500×400×30mm 6. Matching measuring cups:500ml 7, size 500 x 400 x 500mm 8. Instrument weight:5Kg
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    Laboratory Hydro Extractor
    Laboratory Hydro Extractor

    Laboratory hydro Extractor

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    Laboratory Hydro Extractor

    Laboratory Hydro Extractor

    Laboratory Hydro Extractor

      A Laboratory Hydro Extractor is a compact, high-speed centrifuge used in textile labs to remove excess water from fabric or yarn samples after dyeing or washing. It works on the principle of centrifugal force, efficiently reducing moisture content before drying. Key Features:
    1. Centrifugal Water Extraction - Uses high-speed spinning (typically 1400–2800 RPM) to extract water from textiles.
    2. Stainless Steel Inner Basket - Perforated drum holds fabric/yarn securely and allows water to drain efficiently.
     
    1. Compact Lab Design - Space-saving unit designed specifically for laboratory sample sizes.
    2. Digital Timer and Speed Control - Allows precise setting of spin duration and RPM to match sample needs.
    3. Safety Lock System - Ensures the lid remains closed during operation for user safety.
     
    1. Quick Water Removal - Significantly reduces drying time by extracting up to 90–95% of water content.
    2. Low Noise and Vibration - Balanced design ensures quiet and stable operation.
      Applications: - Dewatering of dyed or washed fabric/yarn lab samples. - Pre-drying step in dyeing and finishing tests. - Useful in textile, apparel, and dyeing labs for faster workflow.   Benefits of Laboratory Hydro Extractor:
    1. Efficient Water Removal - Rapidly extracts 90–95% of water from samples, reducing drying time significantly.
    2. Saves Time and Energy - Cuts down the load on dryers and shortens total processing time in lab workflows.
    3. Improves Sample Quality - Gentle spinning preserves fabric structure, avoiding damage or distortion.
     
    1. Precise Control - Adjustable speed and timer ensure optimal settings for different fabric types.
    2. Compact and Lab-Friendly - Small footprint ideal for laboratory use with limited space.
    3. User Safety - Safety lock prevents lid opening during operation, protecting the user.
    4. Cost-Effective - Reduces the need for extended dryer use, saving on electricity and equipment wear.
     
    1. Versatile Use - Suitable for yarn, fabric, and garment samples across various fiber types.
    Features of Laboratory Hydro Extractor:  
    1. High-Speed Centrifugal Operation - Typically runs at 1400–2800 RPM for quick and efficient water removal.
    2. Stainless Steel Inner Drum - Corrosion-resistant, perforated basket for durability and efficient water drainage.
    3. Digital Timer and Speed Control - Allows precise control of spin duration and speed based on sample type.
     
    1. Compact and Portable Design - Ideal for lab environments with limited space.
    2. Safety Lock Mechanism - Prevents the lid from opening while the machine is in operation.
    3. Shock Absorption System- Reduces vibration and noise for smooth, stable performance.
     
    1. Quick Cycle Times - Short dewatering cycles improve lab throughput and efficiency.
    2. Low Maintenance Design - Simple mechanical setup with easy-to-clean components.
    3. Sample Versatility - Suitable for small fabric swatches, yarns, and small garments.
    4. Energy Efficient - Uses minimal power while delivering high performance.
    How to Use a Laboratory Hydro Extractor:
    1. Prepare the Sample - After dyeing or washing, gently squeeze excess water from the fabric or yarn sample by hand.
    2. Load the Sample - Open the lid and place the sample evenly in the stainless steel drum. - Avoid overloading or uneven placement to maintain balance.
     
    1. Close the Lid securely - Ensure the safety lid is properly closed and locked.
    2. Set the Timer and Speed - Use the control panel to set the spin time (typically 1–5 minutes) and RPM suitable for the sample type.
    3. Start the Machine- Press the start button. The extractor will spin at the selected speed to remove water via centrifugal force.
     
    1. Wait for Spin Completion - The machine will automatically stop after the timer runs out.
    2. Unload the Sample - Once the drum stops completely, open the lid and carefully remove the sample.
    3. Proceed to Drying - The dewatered sample can now be air-dried or placed in a drying oven or stenter.
      Safety Tips: - Always ensure the lid is closed before starting. - Do not open the lid while the drum is spinning. - Balance the load to prevent vibration or noise.     Laboratory Hydro Extractor dealer In Bangladesh, Lab Hydro Extractor Importer in Bangladesh, Laboratory Hydro  in Bangladesh, Lab Hydro  in Bd, Hydro Extractor Price in Bangladesh, Laboratory Hydro Extractor in Bangladesh,   Laboratory hydro Extractor Small Dehydrator Model: DUN-SD185 Brad: DUNLIN Origin: China Application scope of small dehydrator: This dehydrator is a kind of small sample dehydration experimental equipment with micro capacity Parameter specification: Inner barrel size: 185mm in diameter * 80Hmm Outer barrel size: ∮200*125Hmm Overall dimension: 290 * 220* 295Hmm Power supply: single phase 220 V / 50 Hz power: 60 W speed: 1800 R / min

    Laboratory hydro Extractor Machine Dunlin price in Bangladesh Laboratory hydro Extractor Machine Dunlin in textile Textile testing equipment in Bangladesh Textile testing equipment in Dhaka Textile testing equipment in Uttara MAAM tex Laboratory hydro Extractor Machine Dunlin price in Bangladesh

    Laboratory hydro Extractor
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