Home / Standards / GB 3452.1-1992 GB 3452.1-1992 Abolished Fluid systems--Sealing devices--O-rings--Inside diameters, cross-sections, tolerances and size identification code 液压气动用O形橡胶密封圈尺寸系列及公差 Standard Type GB ICS 23.040.80 CCS G43 Status 废止 Issue Date 1982-12-31 Implementation 1993-10-01 Responsible Dept N/A Drafting Unit N/A