Profile: Qingdao Haitaisheng machinery manufacture co.ltd. specializes in researching, developing and manufacturing plastic pipes & panel extrusion lines, extrusion dies, plastic recycling and granulators. Our pipe extrusion lines are single & twin screw extruders, PE/PP-R twin, PVC twin, PVC and spiral pipe extrusion lines. We also provide plastic tooling machinery. The single screw extruder reduces melt temperatures and increasing process stability. It is suitable for various kinds of polyolefin materials and especially for material of HDPE pipe. Our plastic tooling machinery includes socketing machine, hot/cooling mixer, PE pipe welding machine and pipe winder.