Home / Standards / GB/T 33920-2017 GB/T 33920-2017 Abolished Test method for flexible graphite sheets 柔性石墨板试验方法 Standard Type GBT ICS 21.140 CCS J22 Status 废止 Issue Date 2017-07-12 Implementation 2018-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A