... ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc3)PA + GF(Glass Fiber)4)Flame- ... the screw and barrel are the important parts for plastic extruders and injection molding machine,they affect ... extruder screw barrel and injection molding screw barrel for Haitian,Demag,Engle,Nigrobossi,KMD,NPM,BOY,HUSKY, ... Conical twin screw extruder is special equipment for all kinds of PVC powder extruder;2, The conical double ...