4pcs Spur Gear pinion 20T 20Teeth Mod 1 M=1 Bore 4mm 5mm 6mm 8mm Right Teeth positive gear 45# steel cnc gear transmission RC

4pcs Spur Gear pinion 20T 20Teeth Mod 1 M=1 Bore 4mm 5mm 6mm 8mm Right Teeth positive gear 45# steel cnc gear transmission RC
sku: 32603889458
$15.99
Shipping from: China
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