The company produces a variety of screw, barrel, strict selection of high quality nitrided steel (38CrMoAlA), by the quenching and tempering, forming, qualitative, nitriding (or spray welding dual alloy), refining, polishing and other processes refined. Europe and the United States the latest technology and processing testing equipment elaborate, strict quality control to ensure product accuracy and quality, and has a longer life and good corrosion resistance. Feeding the rubber material must be hot refining, and feeding uniform, stable, constant speed, the material temperature maintained at 50 ~ 70 ℃. The screw is short, deep thread groove, continuous extrusion, simple operation, high production efficiency, extrusion finished product shape and stability.