... performance parameters:irstly , plastic extrusion machine 1, Gearbox:A, gears hardened gears B, thrust bearing Wafangdian Bearing ... productsC, ring seals using high-grade2, barrel, screw A, screw form:gh production of special screwsB, screw diameter ... segment, auto cooling fan 3, electrical: A, control electrical appliances: Chint B, low-voltage electrical appliances: Chint C, temperature-controlled ...