HDPE/PP Multilayer Pipe Extrusion Line Qingdao Royal-Tech Machinery Co., Ltd. Base Info Model NO.:SJ55,30Product Type:PE PipeAutomation:AutomaticComputerized:Non-ComputerizedCertification:CESzie:160-500mmTrademark:ROYALSpecification:ISO9001; CEOrigin:Qingdao, ChinaHS Code:84772090 Description Pre:PE Double Wall Corrugated Pipe Extrusion Line Next:Ibs Time Sequence Valve