db31 213
db31 213, Total:5 items.
The international standard classification for "db31 213" includes: Energy and heat transfer engineering in general .
The Chinese standard classification for "db31 213" includes: Boiler and its auxiliary equipment .
Shanghai Provincial Standard of the People's Republic of China
- DB31/ 31-1998 Disposable degradable tableware
- DB31/ 213-1998 Technical Requirements and Operation Management of Normal and Micro-pressure Boilers
- DB31/T 213-2020 Specification and operation management for small type boilers and atmospheric hot water boilers
- DB31/ 213-2002 Technical Requirements and Operation Management of Normal and Micro-pressure Boilers
- DB31/ 213-2010 Specification for Small Type Boilers and Atmospheric Hot Water Boilers and Operation Management
astm a213,astm +a213,astm a213/a213m,astm +a213+,astm+a213/a213,astm/a213,une 53 213,etsi 301 213,astm a213/a213m-2017,jem-213,astm +a213/a213,wj/z 213,db31 213,do-213a,GBJ213,GB/T213,GBT213
