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Polymer wear-resistant friction plate hexagon clutch brake pad motor brake accessories

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Science Experiment DIY Wooden Hydraulic Lifting Platform Science and Technology Small Making Interesting Children's Handmade Popular Science Teaching Aware

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Industrial clutch brake friction plate

Industrial clutch brake friction plate

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Air Purifier Technology Small Making DIY Handmade Scientific Experiment Equipment Student STEM Educational Toys

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Air pressure disc brake friction plate for printing machine paper cutter industrial machinery air pressure disc brake pad

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Silicone grease rubber plastic bridge machinery equipment grease moisture-proof rust-proof sealing insulation 5201295 silicone grease

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Frictional electrification science experiment diy technology small production electrostatic demonstration material package steam classroom manual

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Wholesale White Special Grease Mechanical Bearings Reduce Friction High Temperature Lubricant Metal Curing Lubrication

Wholesale White Special Grease Mechanical Bearings Reduce Friction High Temperature Lubricant Metal Curing Lubrication

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Crowdstone Technology Small Making Small Invention Children's Handmade Scientific Experiment Educational Toy Model Stone-throwing Chariot

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Manufacturers supply punch mechanical friction block buffer layer press friction block high wear-resistant friction block production

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Science and Technology Small Production Mars Obstacle Avoidance Robot DIY Primary and Secondary School Physics steam Science Experiment Material Package Invention

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10ml children science experiment pigment water soluble pigment Plasticine slime diy handmade soap colorant

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80*60*15 square 4-hole brake pad slitting machine rewinder brake friction plate

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Small hole imaging device Creative Technology small production DIY light Student Manual science experiment device material wholesale

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Electromagnetic brake friction plate motor brake disc brake pad Mechanical accessories

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diy solar truck technology small production creative invention solar racing science experiment material package wholesale

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DIY water wheel primary school students science and technology small production material package research and learning maker classroom energy conversion experimental equipment

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Children's science and technology small production DIY rubber band guitar handmade self-made scientific experiment invention educational teaching aids

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Climbing monkey friction experiment diy technology small production material package kindergarten popular science hand-assembled educational toys

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Scientific and Technological small production causes of DIY style experimental materials students' scientific and physical equipment teaching aids

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Student Science and Technology Handmade DIY Telegraph Small Making Model Children's Maker Education STEM Scientific Experimental Materials

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5G 10 waterproof sealed silicone grease faucet toy water gun cylinder O-ring silicone grease paste small package lubricating grease

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Scientific Experiment diy Friction Electrogeneration Material Package Electrostatic Demonstration Technology Small Production Student Children Handmade

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Pupil Experimental Pigment 10ml Children's Science Experimental Color Hand Tone Slime Pigment DIY Material

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Friction and Electricity Science Experiment Technology Small Production Student Handmade diy Electrostatic Materials Kindergarten Teaching Aids

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Science and Technology small production GUI watch Japanese shadow length measurement 24 solar terms astronomical instrument handmade DIY children's teaching aids

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KT board student puzzle assembly tree climbing panda friction climbing rope experimental technology small production experimental material package

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