... the latest world technology and optimized design to the machine units make the production line has the advantages of ... of conical twin screw extruder, calibrating platform, haul-off, cutting machine, lamination machine and stacker, etc. The main machine adopts imported world ... foamed profiles, which has better performance than the single screw extruder.Main Technical Parameter: TypeYF-240YF-300YF-800YF- ...