welding pipe fittings carbon steel pipes fittings and flanges and seamless steel pipes square steel pipes HEBEI SHENGTIAN PIPE-FITTINGS GROUP CO.,LTD. ... $7,500,000. We are capable of manufacturing various pipe fittings. Our main products are elbows, tees, bends, reducers, caps ... :2000,API,CCSWe have biggest pipe fittings production equipment in china,all of pipe fittings are products by ourself,so we ...