Home / Standards / GB/T 3502-1983 GB/T 3502-1983 Abolished Technical requirements of super fine palladium oxide powder 超细氧化钯粉技术条件 Standard Type GBT ICS 71.060.20 CCS H71 Status 废止 Issue Date 1983-02-21 Implementation 1983-12-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A