cj/t 21-1999
cj/t 21-1999, Total:5 items.
The international standard classification for "cj/t 21-1999" includes: Ventilation and air-conditioning systems .
The Chinese standard classification for "cj/t 21-1999" includes: Library, Archives, Literature and Information , Ventilation and air conditioning engineering .
Professional Standard - Urban Construction
- CJ/T 16～21-1999 Special equipment for urban sanitation
- CJ/T 21-1999 Specific equipments for municipal environmental sanitation - Treatment of night soil
Professional Standard - Archives
- DA/T 21-1999 Specification of archival microform preservation
Professional Standard - Construction Industry
- JG/T 21-1999 Test methods for determining the performance of air cooling and air heating coils
International Electrotechnical Commission (IEC)
- CISPR 21-1999 Interference to mobile radiocommunications in the presence of impulsive noise - Methods of judging degradation and measures to improve performance
cj/t,cj/t 151,cj/t 81,cj/t 171,cj/t 3016,cj/t 447,cj/t 3018.9,cj+t+,cj/t 3018.8,cj/t 3018.10,cj/t 3018.15,cj/t 3018.14,cj/t 3018.5,cj/t 3018.11,cj/t 3018.12,cj/t 3018.7,cj/t 3018.3,cj/t 244,cj/t 21-1999,CJ T
