Oilfield Standard Specification

1.API Spec 4F 
2.API Spec 7K
3.API Spec 8A
4.API Spec 7F
5.API Spec 9A
6.SY/T5025-1999
7.SY/T5033-93
8.SY/T5112-99
9.SY/T5138-92
10.SY/T5170-98
11.SY5288-2000
12.SY/T5527-92
13.SY/T5528-92
14.SY/T5527-92
15.SY/T5530-92
16.SY/T5531-92
17.SY/T5532-2002
18.SY/T55533-2002

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