selling HDPE double-wall corrugated pipe of all types, HDPE (from type DN20 to type DN1200) water supply, gas supply pipe, PP-R Jiangsu Zhanwang Pipe Co., Ltd., located in No.111 Basi Avenue, Jinhu Economic Development Zone, Jiangsu Province, is a sino-foreign joint venture invested by Zhejiang Qiangsheng Machinery Group and Hong Kong Qingzhan International Trading co., Ltd., with an area of ...