Home / Standards / GB/T 35206-2017 GB/T 35206-2017 Abolished Thin section examination of shale and mudstone 页岩和泥岩岩石薄片鉴定 Standard Type GBT ICS 75.020 CCS E11 Status 废止 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 国家标准委 Drafting Unit N/A