... .A,rubbers,plastic,T.P.R,PVC and elastomeric. High-speed compounding machine line for plastic,rubbers,EVA,TPR,PVC 1 2 ... directly mixing through the airtight mixing machine builds to material.5.The machine tube screw all adopts the high-quality metal alloy steel of the ... 38 C4MoALAs, Be turned a processing by nitrogen and the degree of hardness is high ...