Qingdao Huashida Machinery Co., Ltd. was established in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park.Wehavetens of years experience in plastic pipe,sheet,and board extrusion lines,and pipe joints and welding tools such as heat shrinkable sleeve,Electro fusion sleeve,which is widely used in plastic drainage water pipe,oil and gas pipe,and PU insulatedjacket pipelines.more >>