Home / Standards / GB/T 35481-2017 GB/T 35481-2017 Active Hexalobular bolts with flange 六角花形法兰面螺栓 Standard Type GBT ICS 21.060.10 CCS J13 Status 现行 Issue Date 2017-12-29 Implementation 2018-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A