Home / Standards / GB/T 1243-2006 GB/T 1243-2006 Abolished Short-pitch transmission precision roller and bush chains, attachments and associated chain sprockets 传动用短节距精密滚子链、套筒链、附件和链轮 Standard Type GBT ICS 21.220.30 CCS J18 Status 废止 Issue Date 2006-12-25 Implementation 2007-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会