... Mo, V, S, PFerrous alloy: Fe, Cr, Si, Ni, BNickel alloy: Ni, Cr, Co, Wc, BTungsten alloy: W, Ni, Fe, ... Cu Products showingCompanyProducts application CertificationOur advantages:1. Screw and barrel for various ... and barrel for more injection and extruder machine models 5. Main market: Southeast Asia,Eastern Europe, Africa Tungsten carbide alloy single screw and ...