Gear, Spur Gear, Gear Shaft manufacturer / supplier in China, offering Aluminum CNC Pulley Htd 8m 5m Mxl XL L 3m 5m 8m S2m S3m S5m Gt2 Gt3 Gt5 T5 T10 Tooth Transmission Pulley Timing Pulley, OEM Heavy Duty Large Diameter Wire Rope Pulley Wheel Wire Aluminum Timing Pulley, Factory Custom Aluminum Timing Pulley 2gt 3gt 5gt T10 At5 At10 S2m S3m S5m Htd 3m 5m 8m Synchronous Pulley and so on.