Home / Standards / GB/T 4752-2002 GB/T 4752-2002 Abolished Operation rules for construction of household anerobie digesters 户用沼气池施工操作规程 Standard Type GBT ICS 27.180 CCS F19 Status 废止 Issue Date 2002-07-02 Implementation 2003-01-01 Responsible Dept 农业农村部 Drafting Unit N/A