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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

Original Price: $11 Sale Price: $11

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

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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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Industrial clutch brake friction plate

Industrial clutch brake friction plate

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Gear motor accessories 32mmX32mmX100mm billion large motor brake pad tool magazine motor friction plate

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

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

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Scientific small production diy rocket launcher model students physics experiment enlightenment learning teaching aids

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

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Science and technology small production pole woodpecker science experiment package 7-14 years old primary school students friction physics experiment toy

Original Price: $7 Sale Price: $7

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

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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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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

Original Price: $64 Sale Price: $64

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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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

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

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Montessori Math Educational Aids Wooden Number Computing Clip Beads Matching Game Number Cognition Matching Puzzle

Montessori Math Educational Aids Wooden Number Computing Clip Beads Matching Game Number Cognition Matching Puzzle

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

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

Original Price: $5 Sale Price: $5

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Air pressure disc DBS DBK brake friction plate multi-point round RE old paper cutter brake pad

Original Price: $21 Sale Price: $21

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

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

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Volcanic eruption first grade science experiment children's creative handmade small production volcanic mold shell science and education toys

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

Original Price: $1 Sale Price: $1