... 2)long using life 3)variety PE,PP pipe dieSpecification :200-630mmType of die :basket,sprial,co-extrusion ... composite dieCharacter of die :flow speed of melt is reached to1,no core mold braacket ,so no flow mark left .2 ... ,low pressure ,high extrusion capacity ,the production can be ... 16-630mmType of die :basket,sprial,co-extrusion composite die, Made of stainless steel ...