... quality (high loading capacity)processes by carburization, quenching and tooth grinding processZLYJ112,133,146,173,200,225,250,280, ... , updating design and enhancing service. Our products: Screws Barrels for Injection, Extrusion, and Blow Molding applications; relevant accessories(such ... hours. Stocked products are available, please contact me for further informaiton . single stage gearbox/speed reducer ...