... check the figures without drawings.Please find the detailed infomation about bimetallic single screw barrel for extruder as below:Specification:Screw Diameter ... Nb, Mo, Si, CuSKD61: C, Si, Mn, Cr, Mo, V, S, PFerrous alloy: Fe, Cr, Si, Ni, BNickel alloy: Ni, Cr ... design for you 3. Thousands of drawings can supply for you 4. Insist on developing screw and barrel for more injection and extruder machine ...