... :Wc/Co.Ni+B/Cr 2)application:injection molding machine,extrusion machine,bakellitemachine 3)dimension:15mm-300mm1)material:Wc/Co.Ni+B/Cr2 ... )application:injection molding machine,extrusion machine,bakellitemachine3)dimension:15mm-300mm4)effective length ... , PC pipes etc. Mixing single screw and barrel for extruder machine