... quality 38 CrMoALA single screw barrel for extruder machine We ,Lucheng screw Machinery Factory, is ... have specialized in the field of injection and extruder machine parts. Our advantages: -screw and barrel for ... developing screw and barrel for more injection and extruder machine models - Main market: South America,Eastern Europe ... PP, PVC, PS, ABS, PA, POM, PC, PSV, PTFE, PR, UP, PEC, PF, VF, MP, PMMA, ...