Home / Standards / GB/T 11616-1989 GB/T 11616-1989 Abolished Synchronous belts--Dimensions 同步带尺寸 Standard Type GBT ICS 21.220.10 CCS G42 Status 废止 Issue Date 1989-08-30 Implementation 1990-08-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A