Home / Standards / GB/T 5287-2002 GB/T 5287-2002 Active Extra large series--Product grade C 特大垫圈 C级 Standard Type GBT ICS 21.060.30 CCS J13 Status 现行 Issue Date 2002-12-05 Implementation 2003-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会