Home / Standards / GB/T 39924-2021 GB/T 39924-2021 Active Technical requirements of water saving evaluation for rotating sprinklers 旋转式喷头节水评价技术要求 Standard Type GBT ICS 65.060.35 CCS B91 Status 现行 Issue Date 2021-03-09 Implementation 2021-10-01 Responsible Dept 国家标准委 Drafting Unit N/A