NB/T 47019.7-2021
Technical conditions for ordering tubes for boilers and heat exchangers Part 7: Copper and copper alloys (English Version)
- Standard No.
- NB/T 47019.7-2021
- Language
- Chinese, Available in English version
- Release Date
- 2021
- Published By
- 国家能源局
- Latest
- NB/T 47019.7-2021
- Replace
- NB/T 47019.7-2011
NB/T 47019.7-2021 history
- 2021 NB/T 47019.7-2021 Technical conditions for ordering tubes for boilers and heat exchangers Part 7: Copper and copper alloys
- 2011 NB/T 47019.7-2011 Purchase technical specification for boiler&heater exchanger tubes/pipes.Part 7:Copper and copper alloy tube
