SBG500 UPVC Double Wall Corrugated Pipe Production Line Qingdao Huasu Machinery Fabricate Co., Ltd. Base Info Model NO.:SBG500Product Type:PVC PipeAutomation:AutomaticComputerized:ComputerizedCertification:CETrademark:HUASUSpecification:CE, ISO9000Origin:QingdaoHS Code:84779000 Description Pre:PVC Single Wall Corrugated Pipe Production Machine (SBG32) Next:CE UPVC Double Wall Corrugated Pipe Machine Line (SBG500)