... pipe, steel pipe, D I pipe, cast iron pipe or AC pipe. Pipe Coupling:iron Pipe Coupling for PVC pipe complying to ... 16.0 bar; it provides a quick, leak free,and reliable method of jointing plain end PVC pipes for the conveyance ... ., LTD. Jihongtan Town, Chengyang District, Qingdao City, Shandong Province, China Iron Pipe Coupling