
With over 25 years' development, Ningbo Jinyi Precision Machinery Co., Ltd is now one of Chinese largest companies specialized in manufacturing Screws, Barrels & Tie Bars. With our 5 manufacturing factories based on Ningbo & Zhoushan, JINYI commits to designing and supplying Screw Barrel for all kinds of Plastics and Rubber Machinery. JINYI, Focus on Precise Machining, While pay attention to skilled personnel training, we also imported series of advanced equipments, such as CNC Machining Center, ...