... 300mm 3)effective:HRC58-62 4)application:extruder machine Chenshi Machinery is a professional manufacturer for all ... well of different screw designs of world-famous machine brands, and can produce the screw barrel ... Data:Bimetallic layer analysis38CrMoAlA: Cr, C, Si, Mn, Mo, Al, Ni, Cu, P, S40Cr: Cr, Mn, C, ... and barrel for more injection and extruder machine models 5. Main market: Southeast Asia,Eastern ...