Tianjin Tong Steel Pipe Co., Ltd.<br />Our main products are Spiral Steel Pipe, ERW Seamless Coating OTCG(Casing, Tubing), Line Pipe Fitting, ....Address:jinghai, tianjin,chinaChengdou ZYZJ Petroleum Machinery Co Ltdour main products including: Casing, Tubing, Line Pipe, drill collar, Kelly, Sucker Rod, Mud Pumps. Hook, rotary ....Address:jintang Road, chengdou, Other, ChinaSichuan Huagong Petroleum Steel Pipe Co., Ltd.Established in 1998, Sichuan Huagong Petroleum Steel Pipe Co., Ltd. Or HGPPC is one of the specialized companies ....Address:North Zone, Hi-Tech Industry, Development District Golden Bull Region, Chengdu, Sichuan, ChinaJinan Joint Professional Pipe Co.,Ltd<br> <br>We are one of the largest companies specialized in seamless pipe northern China. It is ....Address:No.10, Dalixincun Hengyang Hunan China
