Home / Standards / GB/T 5721-1993 GB/T 5721-1993 Active General rules of identification，packaging，transportation and storage for rubber sealing products 橡胶密封制品标志、包装、运输、贮存的一般规定 Standard Type GBT ICS 21.140 CCS G43 Status 现行 Issue Date 1993-12-30 Implementation 1994-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A