... screw even and continuously, our motors, tempreture controller and inverters are made by world famous brand, such as Siemense, Omron, ... RKC, FUJI, and so on. Our screw and barrels are 38CrMoALA, nitrogen treatment. With double screen exchanger, you ... With more than 10 years experiences in this field, we are so professional and competitive, welcome to visit our factory, we will ...