Home / Standards / GB/T 20507-2018 GB/T 20507-2018 Active Spherical nickel hydroxide 球形氢氧化镍 Standard Type GBT ICS 77.150.40 CCS H62 Status 现行 Issue Date 2018-09-17 Implementation 2019-06-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A