... treatment screw element for co-rotating twin screw extruder machineMaterial: W6Mo5Cr4V2 high speed tool steel; high temperature quenching treatmentNitrided steel ... modificationPE,PP,PS+SBS,PA+EPDM,PP+NBR,NVA+silicon rubber,ectPE,PA,PC,CPE+ABS(ALLOY),ABS+ ... LLDPE,MDPE,EVA,PVCect+Insulating cables,coatings,PE peroxide,silicon alkyl crossing cablesSpecial materialsEVA heat-melting glue,polyurethane, ...