1) Steel grade: ST33, ST37, S185,SS330, Q195, Q215, Q235 2) Size: 33.7-508mm (1''-20'') x 2.0-16mm 3) Standard: ASTM A53, JISG, DIN1626/2-2458,GB/T3091-2001 4) Supply ability: 20,000MT/month 5) Marking: as per customers' requirements Our HEBEI XINRONG STEEL PIPE CO., LTD, is specializing in producing all kinds of hot-rolled steel pipes, hot expanded steel pipes. I shall be glad to enter into business relations with you on the basis of equality and mutual benefit. And become you friends. If you'R interested in our products, Please let us have your specific enquiry We shall make offers promptly. Thanks for you supporting.