Home / Standards / GB/T 8660-2008 GB/T 8660-2008 Abolished Rubber,butadiene(BR) - Solution-polymerized types - Evaluation procedures 溶液聚合型丁二烯橡胶(BR)评价方法 Standard Type GBT ICS 83.060 CCS G34 Status 废止 Issue Date 2008-06-19 Implementation 2008-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A