Office stationery testing equipment
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LT-WJB09 Pen holder fatigue testing machine
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LT-WJB01 Cross-hatching testing machine
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LT-WJB11 Lead decompression testing machine
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LT-WJB04-A Special marking pen scribing instrument
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LT-WJB04-B circular writing machine
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LT-WJB06 Manual pencil sharpener cutting torque...
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LT-WJB21 Pencil sharpener sharpening ability te...
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LT-WJB15B Erasure rate testing machine (rubber ...
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LT-WJB15A Erasure rate testing machine (colorin...
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LT-WJB20 Core tip force tester
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LT-WJB24 Micro Vickers hardness tester
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LT-WJB23 Mechanical pencil fatigue tester
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