| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| NB/T 47019.4-2021 | English | 189 |
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Days<=3
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(Technical conditions for ordering boiler and heat exchanger tubes - Part 4: Low alloy steel for low temperature)
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NB/T 47019.4-2021
| Valid |
NB/T 47019.4-2021
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