... Twin Screw and Barrel material: bimetallic layer PP,PE,PVC,PET,ABS,PPR for Plastic Extruder Machine Conical Twin Screw and ... for the screw of different functions.Materials38CrMoAlA (JIS SACM645)SKD61 .etcApplication PS,HIPS,ABS,SAN,EPN/LDPE,HDPE,UHMPE,EVA,PP ... 6)Gh113 nickel based alloy Nitride Hardness950-1050HVPackingWrapped up by film in woodenNitride Brittleness≤Grade OnePayment TermT/T , L/C ...