Gearbox, Reducer, Sprocket manufacturer / supplier in China, offering Factory Customized High Precision Timing Pulley for Tooth Type 1.5gt Gt2 3gt 5gt Mxl XL L H Xh Xxh 2m 3m 5m 8m 20m T5 T10, Zlyj Single-Screw Speed Reducer Single Extruder Gearbox for Rubber Plastic Nylon Extruder Blowing, Single Screw Barrel Plastic Extruder Melt Blowing Machine Gearbox Zlyj173/ Zlyj200 Zlyj for Mask Making and so on.