| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SY/T 6138-1996 | English | 439 |
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Days<=4
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(Selection and procurement of technical provisions oilfield valves)
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SY/T 6138-1996
| Obsolete |
SY/T 6138-1996
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