Home / Standards / GB/T 2075-2007 GB/T 2075-2007 Abolished Classification and application of hard cutting materials for metal removal with defined cutting edges ― Designation of the main groups and groups of application 切削加工用硬切削材料的分类和用途 大组和用途小组的分类代号 Standard Type GBT ICS 25.100.01 CCS J41 Status 废止 Issue Date 2007-07-26 Implementation 2007-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会