... import company.Tangshan Ruiyin International Trade Co., Ltd mainly imported iron ore and coal, and exported the steel ... pipes and various kinds of finished steel products, fireproofing materials and so on. We have been in this line ... so on.NAMEPipe Fittings,buttweld pipe fitting,pipe cap,seamless BW pipe fittingPRODUCTSElbows,reducers,pipe tees,bends,pipe caps,lap jointMATERIALCarbon steel,stainless ...