(Petroleum casing pipes) The company specializes in manufacturing oil casing, oil pipe, casing is oil drilling important equipment in the casing of oil production since the company has achieved ISO9001-2000 certification, the American Petroleum Institute API5CT certification American Petroleum Institute Standard APISPEC5CT1988, 1st Edition, Casing Steel fraction of H-40, J-55, K-55, N-80, C-75, L-80, C-90, the C-95, P-110 Q-125 a total of 10 kinds. Oil casing buckle the BTC, LTC, STC. Oil casing length of R1, R2 and R3. Oil Casing is a large diameter pipe, to play the role of the fixed oil and gas wells wall or borehole. The casing is inserted into the borehole, fixed with cement to prevent the borehole to separate the rock formations and borehole collapse, and to ensure the flow of drilling mud circulation, in order to facilitate the drilling mining. Oil Casing Sales Consulting 0317 -5128533 Mobile: 13323270092 Fax :0317-6322267 Contact: Wang Yuehong URL: http://www.baiyipipe.com