Home / Standards / GB/T 2687 GB/T 2687 Abolished Powder metallurgy plain bearing--Spherical type--Types， dimensions and tolerances 滑动轴承 粉末冶金球形轴承型式、尺寸与公差 Standard Type GBT ICS 21.100.10 CCS J12 Status 废止 Issue Date 1981-06-17 Implementation 1982-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会