Seamless OCTG OCTG, full name of Oil CountryTubular Goods, petroleum special pipe. It refers to a kind of steel pipe which is specially used for oil and gas exploration, most of which are seamless tubes, but the welded pipe also accounts for a considerable proportion....Read More
API5CT Casing API casing, seamless or ERW casing size from 4-1/2" to13-3/8" and also large size ERW 16", 18-5/8", 20" casing. Grade H40, J55, K55, M65, L80, C95, N80, C90/T95, P110, Q125. Thread and coupling STC, LTC, BTC or Premium connection, length...Read More
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