resistance backflow preventer
resistance backflow preventer, Total:3 items.
The international standard classification for "resistance backflow preventer" includes: Other valves .
The Chinese standard classification for "resistance backflow preventer" includes: Valve .
Professional Standard - Machinery
- JB/T 11151-2011 Low-resistance backflow preventer
Professional Standard - Recommended Standards for Engineering Construction
- CECS 259-2009 Low resistance backflow prevention device application technical specification
Group Standards of the People's Republic of China
- T/CCMSA 40624-2021 Backflow preventer
