| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 20559.1-1993 | English | 2149 |
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Days<=10
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(Provisions piping and instrumentation diagram design content pipeline depth instrumentation diagram design requirements)
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HG/T 20559.1-1993
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HG/T 20559.1-1993
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