| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| CECS 131-2002 | English | 859 |
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Days<=5
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Technical specification for buried steel skeleton polyethylene fuel gas pipeline engineering
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CECS 131-2002
| Valid |
CECS 131-2002
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