API SPEC SDP Friction welded DZ50 R780 E X G S 5DP grade steel 60mm Drilling pipe
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API Spec 7-1 Water Well Drilling Drill Collar Lifting Sub 2 7/8"- Nc262020-11-03 16:47:15 |
API Spec 7-1 Oil Drilling Lifting Sub 2 7/8"- Nc26 AISI 4145h2020-11-03 16:43:46 |
API Spec 7-1 Oil/Gas/Water Drilling Lifting Sub 3 1/2"- Nc35 AISI 4145h2020-11-03 16:37:56 |