Carbi-metallic injection screw and cylinder,screw sprinkler *Sparying alloy powder *Super wear-abrasion&corrosio *Longer life Super alloy machine screw /bimetallic injection screw and cylinder DiameterΦ15mm-Φ350mmDesigningScrew structure and compressionratio can be designed according to different products &different mixtrues. L/D10-36Advantages1.Advanced Nitriding Technology 2.Anti-corrosion and ...