Home / Standards / GB/T 8411.1-1987 GB/T 8411.1-1987 Abolished Porcelain insulating material for electrical applications--Part 1:Definition，classification and properties 电瓷材料 第一部分:定义、分类和性能 Standard Type GBT ICS N/A CCS K50 Status 废止 Issue Date 1987-12-16 Implementation 1988-10-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A