... Jiangsu Province, is a sino-for Jiangsu Zhanwang Pipe Co., Ltd., located in No.111 Basi Avenue, ... researching, manufacturing and selling HDPE double-wall corrugated pipe of all types, HDPE (from type DN20 to ... type DN1200) water supply, gas supply pipe, PP-R (from type DN20 to type DN160) ... cold & hot pipe, PE-RT floor heating pipe and all pipe fittings, with annual sales of ...