1.Characteristics of plastic corrugated pipe (1)  Using HDPE as main raw material, plastic corrugated pipe is featured by high corrosion resistance, ageing resistance and fatigue durability. (2)  Excellent sealing and impervious performance, which is applicable to vacuum grouting. (3)  Plastic corrugated pipes are black or yellow and no defects like hard lump or severe bubble are allowed. (4)  Plastic corrugated pipe is featured by good flexibility and wearing quality. The suggested spacing between spacer bar is no more than 0.8m and the minimum bending radius is 0.9-1.5m.   NO. Description     Unit 1 SJ-65x30 Single Screw Extruder set 2 Carbon Pipe Mould(Including Extruding Die) sets 3 Vacuum Sizing Forming Machine(Oven, squashed, towed) set   Phone& WhatsApp&Wechat NO:0086-18563916721 Email: sales1@fullwinmachinery.com