... Screw And Barrel conical twin screw and barrel for pp sheet extruder Ruian Yumin machine screw co.,ltd is ... Yumin machine screw factory has worked in this field for 22 years and has become the main supplier of ... ability to give the best product with excellent quality for our customers. size: 35/75, 45/90, 45 ... plating: 0.03-0.08mmDepth of alloy layer:>2mmUsed for granulation,PP, PE, PA, PC, ABS,AS etcWe ...