| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| CJJ/T 291-2019 | English | 1679 |
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Days<=10
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Standard for engineering investigation of ground - source heat pump system
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CJJ/T 291-2019
| Valid |
CJJ/T 291-2019
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