... 3.Tolerance:+/-0.01mm 4.certification:ISO9001:2008 plastic spur gears for toysWe can produce gears, worms,worm gears ... , PS, TPE, TPU, TPR and other injected plastic material.2). Process: Plastic Injection Molding;3). Finish: Vacuum plating, electroplating, ... Packaging: Inner packing--Polythene bags, outer packing--Paper cases suitable for transportation by air or sea;8). Competitive price, good quality ...