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A kind of simple type arm support set
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A kind of vollyball is to top plate
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Leg massor after a kind of Athletess
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Sports equipment is used in a kind of exercise of abdominal muscles
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A kind of sport leg pressing equipment
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A kind of sport barbell exercise device
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Anti-attrition material
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Antifriction lubricating material
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Anti-attrition lubricating material
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Anti-attrition material
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Novel friction material
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Friction material
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Synthesizing type friction material
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Novel rock wool
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Friction material for brake pad
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Improved-type friction material
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Metal ceramic friction material
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Compound friction material
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Modified phenolic resin-based friction material
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Novel friction material for brake pad
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