HCRJ 031-1998
Middle and fine bubble diffusers (English Version)
- Standard No.
- HCRJ 031-1998
- Language
- Chinese, Available in English version
- Release Date
- 1998
- Published By
- Professional Standard - Environmental Protection Certification Specification
- Status
- 2006-06
- Replace By
- HJ/T 252-2006
- Latest
- HJ/T 252-2006
HCRJ 031-1998 history
- 2006 HJ/T 252-2006 Technical requirement for environmental labeling product Middle and fine bubble diffusers
- 1998 HCRJ 031-1998 Middle and fine bubble diffusers
HCRJ 031-1998 Middle and fine bubble diffusers was changed to HJ/T 252-2006 Technical requirement for environmental labeling product Middle and fine bubble diffusers.
