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API 5CT OCTG Casing Pipe/seamless steel pipe china2016-12-08 17:08:41 |
API 5CT female threading tubing and casing pipe coupling of octg2016-12-22 10:11:26 |
octg oil casing and tubing drill pipe2016-12-08 17:08:41 |
CASING 4-1/2''~13-3/8''2016-12-08 17:08:41 |
API Seamless Oil Well Casing Pipe2016-12-08 17:08:41 |
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API 5ct and 5b octg casing and tubing pup joint for oil field2016-12-08 17:08:41 |