Zhoushan Jingai Alloy Precision Casting Co.,Ltd is famous China Extruder screw barrel Manufacturers and Extruder screw barrel factory. In the incentive market competition, the essence of resistance by the good faith, service, in the superior quality, and the real price under the premise of the company's technical staff is also time for customers to solve various questions and problems.Over the years,the main products are Nitriding screw and barrel,bimetallic alloy screw and barrel,stainless steel screw and barrel, fully hardened screw, wholeslae Extruder screw barrel which will be used at...