| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 12237-2007 | English | 639 |
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Steel ball valves for petroleum, petrochemical and allied industries
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GB/T 12237-2007
| Obsolete |
GB/T 12237-2007
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