Gear, Spur Gear, Gear Shaft manufacturer / supplier in China, offering Aluminum Synchronous Pulley Customized Htd 3m 5m 8m T10 At5 At10 2gt 3gt 5gt S2m S5m Timing Pulley, Aluminum Timing Pulley Htd Mxl XL L S2m S3m S5m S8m 3m 5m 8m Timing Pulley, Aluminum Alloy/Steel Timing Pulley Trapezoidal Mxl/XL/L/ T-Type T2.5/T5/T10/T20 S2m/S3m/S5m/S8m Timing Pulley and so on.