Home / Standards / GB 12744-1991 GB 12744-1991 Abolished Outdoor antipollution-type solid-core post insulators of ceramic material 耐污型户外棒形支柱瓷绝缘子 Standard Type GB ICS 29.080.10 CCS K48 Status 废止 Issue Date 1991-03-21 Implementation 1991-10-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A