Plastic Gear Gearbox Motor Gear Remote Control Car Ship Model Toy DIY Accessory 80 kinds of belt gear package 10 rubber bands

Specifications:
Material: plastic
Location: external gear
Tooth surface hardness: hard tooth face

Gearbox including gear, rack, pulleys, belts, and transmission parts, photo taken in kind.
Many accessories are factory own design and production of places to buy less than the full range of accessories, machinery accessories essential research laboratory, science activities, personal diy model.


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