... 4,cooling water temperature:<12 features and applicants:The line is made of 1,vibrating sieve, 2,high ... plastic powder charger,5, conical double-screw extruder, 6,hadpiece, 7,double wall accordion pipe shaper,8, plastic pipe-expanding machine, 9,pilling bin ... produce PVC PE plastic double-wall accordion pipes and plastic single-wall accordion pipes.main tech parameters:pipe diameter:90-160mmproduction ...