Home / Standards / GB/T 11616-2013 GB/T 11616-2013 Active Synchronous belt dirves—Belts with pitch codes—MXL , XXL , XL , L , H, XH and XXH—Synchronous belt dimensions 同步带传动 节距型号MXL、XXL、XL、L、H、XH和XXH 同步带尺寸 Standard Type GBT ICS 21.220.10 CCS J18 Status 现行 Issue Date 2013-12-17 Implementation 2014-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A