| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| NB/T 47019.1-2011 | English | 135 |
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Purchase technical specification for boiler and heater exchanger tubes/pipes. Part 1: General Requirements
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NB/T 47019.1-2011
| Obsolete |
NB/T 47019.1-2011
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