Founded in 1989, Zhejiang Jinxing Injection Screws Manufacture Co., Ltd has enjoyed a good reputation in the industry after more than 30 years of development. At the same time, as a professional Twins Screw Manufacturers and nitriding screw suppliers, we have Austrian CNC whirling milling PICK UP 500, CNC turning center, CNC numerical control and many other professional equipment. Polishing machine, automatic plasma welding machine, coordinate measuring machine (CMM), CNC grinding machine, CNC thread milling machine, CNC vertical honing machine, CNC thread milling machine, CNC machining center, tempering furnace, pit nitriding furnace, cylindrical grinding machine and 10m boring and milling machine etc. We specialize in custom chrome plated screw, and we have established a P&C laboratory, which has introduced advanced testing equipment and methods to check the quality of products. Inspection includes nitriding thickness, performance, metallographic analysis, hardness, torque, tension, straightness, roughness, etc. Here, we can provide you with various screws and barrels exactly according to your needs. You can also trust our extensive experience in advanced technology and quality service.