Our double screw and cylinder for plastic products have following features : Conical twin screw machined on CNC"WMW" Germany make thread milling machines by simulation software for better performance. Conical twin screw and barrel are specially designed for high calcium loading. compact&reliable gearbox designed for high output at low screw speed and less power consumption. Two piece barrel construction for economical replacement can be provided. Bi-metallic screw&barrel can be provided for...