... high-grade2, barrel, screw A, screw form:gh production of special screwsB, screw diameter:¢ 90mm, screw L/D:20:1, screw materials and ... control of digital meters F, barrel heating: Cast aluminum heat G, barrel cooling: water barrel feed section of the work force segment ... dedicated anti- H, single-zone temperature-controlled stainless steel barrel housing Second, the molding die 1, forming high ...