Inquiry for oil Tube and casing pipe -API 5CT Please would you be kind enough to furnish me with the cost per pound of carbon steel used in the manufacture of casing for oilwells. Thank you. 联系方式Co:ROBRET GORDON UNIVERSITY ABER Tel:0044 1224 262726 Email:international@rgu.ac.uk Website:http://www.rgu.ac.uk联系人：anahdun国家：United Kingdown产品类别机械五金international@rgu.ac.uk
