Gear, Geared Parts, Transmission Parts manufacturer / supplier in China, offering 8mm Hole 18-Tooth Spur Gears: 30mm Outer Diameter + 27mm Outer Diameter Set, Custom CNC Precise Machining Small-Module Steel Motor Gear Shaft with Grinding Teeth, CNC Machining Factory Custom High Efficiency Transmission Forged Steel Pinion Gear Shaft and so on.