Home / Standards / GB/T 31051.4-2016 GB/T 31051.4-2016 Abolished Cranes—Anchoring devices for in-service and out-of-service conditions —Part 4: Jib cranes 起重机 工作和非工作状态下的锚定装置 第4部分：臂架起重机 Standard Type GBT ICS 53.020.30 CCS J80 Status 废止 Issue Date 2016-10-13 Implementation 2017-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A