... CO.,LTD.Tangshan Ruiyin International Trade Co., Ltd. established in 2003, its total capital assets is 3,000,000,000 RMB,its a comprehensive industry ... Middle East, Europe and America and so on.NAMEPipe Fittings,buttweld pipe fitting,pipe cap,seamless BW pipe fittingPRODUCTSElbows, ... ,API,CCSWe have biggest pipe fittings production equipment in china,all of pipe fittings are products by ourself,so ...