sanitation symbol
sanitation symbol, Total:2 items.
The international standard classification for "sanitation symbol" includes: Graphical symbols .
The Chinese standard classification for "sanitation symbol" includes: Environmental sanitation .
Professional Standard - Urban Construction
- CJJ/T 125-2008 Standard for figure symbols of environmental sanitation
- CJJ/T 125-2021 Standards for Graphical Symbols of Environmental Sanitation
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