plastic machine 1.produce pipe,profile,sheet,board...of pcv,pp,pet,pp...etc 2.Excellent quality 3.economical prices. single screw extruderMain Technical ... ,such as Schneider, Yaskawa, Simens,Omron, ABS, etc...---Material of screw and barrel: 38CrMoAlA Azotizing on surface 0.40.7mm Rigidity ...