Home / Standards / GB/T 4459.7-1998 GB/T 4459.7-1998 Abolished Mechanical drawings--Representation of rolling bearings 机械制图 滚动轴承表示法 Standard Type GBT ICS 01.100.20 CCS J04 Status 废止 Issue Date 1998-08-12 Implementation 1999-07-01 Responsible Dept 国家标准委 Drafting Unit N/A