Gear, Spur Gear, Gear Shaft manufacturer / supplier in China, offering OEM Custom Helical Gear Tensioner Stainless Steel SUS304 Aluminum 6061 Synchronous Timing Pulley Synchronous Pulley, Automated Machinery Precision Aluminum Synchronous Pulley Hard Anodized Timing Pulley Synchronous Pulley, Galvanized High-Precision Aluminum Gt2 Gt5 Htd3m Htd5m Timing Pulley Synchronous Pulley and so on.