Gear, Spur Gear, Gear Shaft manufacturer / supplier in China, offering High Quality Std Htd 5m 8m Transmission Timing Pulley Gear Custom OEM Support Stainless Steel Aluminum Steel, Customized 10 150-Tooth Aluminum Alloy Synchronous Pulley Gt2 Gt3 Gt5 Mxl XXL XL Lh 3m 5m 8m 14m Timing Pulley OEM, Aluminum Alloy Htd2m 3m 5m 40t Timing Pulley 40 Teeth 6 8 10 12 14 15 16 17 19 20mm Timing Pulley and so on.