... )Mixing nature-changingPE,PP,PS+SBS,PA+EPDM,PP+NBR,EVA +Silicon rubber etc.150-320PE,PA,PC,CPE+ABSalloyABS+TPU,PBT ... "∞" shape hole is lined with wearing proof alloy a-101Fe - Cr - Ni -B+Carbide, hardness: HRC60 - 64, barrel length: L = 190mm ...