... screw and barrel for injection mold machine. it's a special design for injection, based on bimetallic material screw and barrel for plastic injection molder machine/molding machine Size: screw diameter:Φ20-Φ500mm Maximum screw ... coating spraying, heating treatment, screw fully hardening,specifications: 30g- ... for granulation,PP, PE, PA, PC, ABS,AS etcWe can manufacture various kinds of screw barrels ...