EC21 Buying Leads Catalogs - tube s m http://importer.ec21.com/buy_leads/tube s m.html Want To Import Hot Rolled Steel Stripshttp://www.ec21.com/offer_detail/Want_To_Import_Hot_Rolled--3172806.htmlM. S. Tubes are BS : 1387 and BDS : 103: 2) Type of Edge : Slit Edge 3) Ends : Without Tongue and Fishtail 4) Chemical 20080310