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

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Electronic cannon DIY homemade technology small production handmade gun science and technology experiment science and education air pressure launch stem

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Learning Youma Eight Planet Learning Instrument Solar System Model Primary School Students Milky Way Electric Three-Ball Instrument Astronomical Teaching Aids

Learning Youma Eight Planet Learning Instrument Solar System Model Primary School Students Milky Way Electric Three-Ball Instrument Astronomical Teaching Aids

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Australian life cycle board Montessori growth cycle board open cycle deduction teaching aid plate wooden

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Fruit power generation experiment set scientific experiment materials student science and technology training class teaching tools hand-made

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Friction starting science experimental materials science and technology small production children's stem maker education and training equipment

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Industrial clutch brake friction plate

Industrial clutch brake friction plate

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DIY Human Blood Circulation Model Science and Technology Small Production Children's Small Invention Scientific Experiment stem Maker Material

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Everest Kaiyue 500X brake pad 500F 525X 525F disc brake leather ZF500GY ZF500 brake friction

Everest Kaiyue 500X brake pad 500F 525X 525F disc brake leather ZF500GY ZF500 brake friction

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Children's Montessori Early Education Mathematics Learning Stick Color Cognitive Matching Board Wooden Stick Game Educational Toys

Children's Montessori Early Education Mathematics Learning Stick Color Cognitive Matching Board Wooden Stick Game Educational Toys

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

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

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[Star River] cable-stayed bridge diy technology small production mechanics physics experiment school education training material package

[Star River] cable-stayed bridge diy technology small production mechanics physics experiment school education training material package

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Science and Technology small production diy electric sliding aircraft children's science experiment teaching aids student handmade stem device material

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Self-made dynamometer student spring scale technology small production tension device children's science small experiment material package teaching aids

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Super high temperature resistant grease high speed bearing mechanical wear-resistant Butter automobile industrial gear electric hammer factory wholesale

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Science and technology small production DIY colorful full-color light circuit experimental toys electromagnetic induction science small experimental material package

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3# lithium grease extreme pressure composite lithium grease universal lithium butter industrial lithium grease

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diy kindergarten Elementary School students' science and education toys scientific small production friction generation electric electrostatic experiment handmade materials

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800g keg general grease excavator loader butter construction machinery friction parts lubrication anti-rust

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Science and technology small production diy material package small invention hand-made dehydrator dryer elementary school students scientific experiment

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Ailunbao plastic gear silencer grease anti-wear, high temperature resistance, friction resistance, strong adhesion and no oil rejection

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Electromagnetic brake friction plate motor brake disc brake pad Mechanical accessories

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Science and technology DIY balance scale small production primary school children science experiment handmade lesson puzzle stem educational supplies

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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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diy technology small production homemade air pressure rocket scientific experiment air gun principle model material

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Science and Technology Small Production DIY Creative Teaching Science Experiment Student Small Invention Electric Jeep Off-road Vehicle Material Package

Science and Technology Small Production DIY Creative Teaching Science Experiment Student Small Invention Electric Jeep Off-road Vehicle Material Package

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Science and Technology small production diy small invention boy hand-made mechanical password box science and technology innovation scientific experiment

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Science and technology small production self-made Periscope Junior High School optical reflection experiment DIY light refraction propagation popular science model

Original Price: $13 Sale Price: $13


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