We are a well established enterprise and supplies stainless steel pipe, welded pipe, duplex pipe, honed tube, high precision cold drawn tube, pre-honed tube, hard chrome piston rod, hollow bar, oil casing pipe, drill pipe and API line pipe. Products are certificated by national and international authority bodies ***** TUV, SGS and ISO9001 quality assurance. Third party inspection by an EU body (TUV, DNV, LR, SGS, BV) and 3.1B/3.2 certificate according to EN 10204 are also available. Welcome to contact us at your convenient time if there is any inquiry we can help.anna 2 *****