0.5M 1:2 Reducer Bevel Gear 20T 40T 20 Teeth 40 Teeth Copper 90 Degree Angle Small Gear Hole 3 MM/4 MM Large Gear Hole 6MM

0.5M 1:2 Reducer Bevel Gear 20T 40T 20 Teeth 40 Teeth Copper 90 Degree Angle Small Gear Hole 3 MM/4 MM Large Gear Hole 6MM

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