With over 25 years’ development, Jinyi Precision Machinery Co.,Ltd is now one of the largest companies specialized in manufacturing Screws, Barrels & Tie Bars. JINYI commits to designing and supplying Screw Barrel for all kinds of Plastics and Rubber Machinery. JINYI developed JYK Series Bimetallic Barrels and JYG Series ultra wear resistant screws, Even for running plastics with 60% Glass Fiber, we can also provide 2 Years Warranty, which has won wide recognition from all over the world.