Executive standard for oil pipe
1. Seamless steel oil pipe for structure: GB8162-99
2. Ground seam steel oil pipe for fluid transmission: GB8163-99
3. Seamless steel oil pipe for boiler: GB3087-1999
4. High pressure seamless oil pipe for boiler: GB / t5310-95
5. High pressure seamless steel oil pipe for chemical fertilizer equipment: GB / t6479-1999
6. Seamless steel oil pipe for geological drilling: yb235-70
7. Seamless steel oil pipe for oil drilling: yb528-65
8. Seamless steel oil pipe for petroleum cracking: gb9948-88
9. Special seamless oil pipe for petroleum drill collar: yb691-70
10. Seamless steel oil pipe for automobile axle shaft: gb3088-1999
11. Seamless steel oil pipe for ships: gb5312-1999
12. Cold drawn cold rolled precision seamless steel oil pipe: GB / t3639-1999
13. Various alloy pipes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMoV, 20g, 40Cr, 12Cr1MoV, 15CrMo
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