Home / Standards / GB 5577-1985 GB 5577-1985 Abolished Codification of types for synthetic rubbers 合成橡胶牌号规定 Standard Type GB ICS 83.060 CCS G34 Status 废止 Issue Date 1985-10-26 Implementation 1986-08-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A