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Homemade flute elementary school student simple musical instrument handmade diy technology small production educational science experiment teaching aids materials

Homemade flute elementary school student simple musical instrument handmade diy technology small production educational science experiment teaching aids materials

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

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

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Hand spray butter lubricant bearing gear grease anti-high temperature mechanical hinge door lock abnormal sound deep lubrication

Hand spray butter lubricant bearing gear grease anti-high temperature mechanical hinge door lock abnormal sound deep lubrication

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

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

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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

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

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

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

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Exploration Boy Ancient Water Clock Pupil Science Experiment Toy Set DIY Handmade Science and Technology Small Production

Exploration Boy Ancient Water Clock Pupil Science Experiment Toy Set DIY Handmade Science and Technology Small Production

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Portable Children's Microscope 180 Times High Definition Scientific Experiment Toy Set Xueyouma Cross-border Hot Selling Puzzle

Portable Children's Microscope 180 Times High Definition Scientific Experiment Toy Set Xueyouma Cross-border Hot Selling Puzzle

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

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

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Xueyouma Portable Microscope Upgrade 3-in -1 Set Dual Light Source Experiment Microscopic Slide Specimen Toy

Xueyouma Portable Microscope Upgrade 3-in -1 Set Dual Light Source Experiment Microscopic Slide Specimen Toy

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Industrial clutch brake friction plate

Industrial clutch brake friction plate

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One-piece air-powered car scientific experiment toy STEAM small production maker training DIY material

One-piece air-powered car scientific experiment toy STEAM small production maker training DIY material

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Friction experiment demonstrator material package trolley wheel labor-saving diy technology small production science classroom supporting

Friction experiment demonstrator material package trolley wheel labor-saving diy technology small production science classroom supporting

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

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

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

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

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

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

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Electric hammer grease impact drill gear maintenance oil power tool lubricating grease friction resistance long life manufacturers

Electric hammer grease impact drill gear maintenance oil power tool lubricating grease friction resistance long life manufacturers

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117*83*19 Brake Friction Plate Brake Pad for Fiat Allis Loader

117*83*19 Brake Friction Plate Brake Pad for Fiat Allis Loader

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Creative Technology small production friction experiment brain Tiangong Primary School kindergarten science popularization experiment toy teaching aids

Creative Technology small production friction experiment brain Tiangong Primary School kindergarten science popularization experiment toy teaching aids

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Maxwell rolling pendulum stem technology small production diy physical experiment gravity model popular science equipment wholesale

Maxwell rolling pendulum stem technology small production diy physical experiment gravity model popular science equipment wholesale

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

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

Original Price: $5 Sale Price: $5

100ml magic water sprite solution magic water baby special pigment handmade ocean baby supplement

100ml magic water sprite solution magic water baby special pigment handmade ocean baby supplement

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

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

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

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3G 5g small bag lubricating grease small package silicone grease maintenance butter White bearing gear slide rail grease

3G 5g small bag lubricating grease small package silicone grease maintenance butter White bearing gear slide rail grease

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

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

Original Price: $134 Sale Price: $134

Scientific experiment diy climbing monkey physical friction technology small production student children handmade school material package

Scientific experiment diy climbing monkey physical friction technology small production student children handmade school material package

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

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

Original Price: $7 Sale Price: $7