... 3.Transmission parts 4.certification:ISO9001:2008 Small Plastic Worm and Worm GearsWe can produce gears, worms,worm ... , PMMA, PS, TPE, TPU, TPR and other injected plastic material.2). Process: Plastic Injection Molding;3). Finish: Vacuum plating, ... engineering design, plastic mould and injection moulding, plastic part production and assembly;6). Application: All kinds of plastic injection parts being ...