... steel pipes square steel pipes HEBEI SHENGTIAN PIPE-FITTINGS GROUP CO.,LTD.Hebei Shengtian Pipe-Fittings Group Co., Ltd. was established in 1989. We are ... of $7,500,000. We are capable of manufacturing various pipe fittings. Our main products are elbows, tees, bends, reducers, ... 9001:2000,API,CCSWe have biggest pipe fittings production equipment in china,all of pipe fittings are products by ourself,so ...