Product Overview Huashida high-efficiency extrusion line produces black HDPE outer jackets for PU foam pre-insulated pipes. It features a compact layout, easy operation, fast production speed and low energy consumption. Fitted with an automatic control system, the line ensures stable and continuous long-term running. Production Line Composition 1 set — Vacuum loader 1 set — Hopper dryer 1 set — High-efficiency single screw extruder 1 set — Vacuum calibration table 1 set —