Weifang Changsheng Pipe Co.Ltd lies in the high and new technology industrial development zone of Weifang, the well-known kite capital city.It is a individually-run enterprise with high techonlogy,which has the capabilities of manufacture,sales and customer service.Our business scope is the manufacture and sales of trench ductile cast iron pipes connectors and steel plastic composite pipe.It has become one of the major suppliers in China and OEM exporter.The company has set foot in many areas such as grooved couplings and fittings,automobile matching parts,machinofacture and composite metal plastic pipes manufactures,etc.