Home / Standards / GB/T 6974.4-1986 GB/T 6974.4-1986 Active Lifting appliances--Vocabulary--Mechanism and component parts 起重机械名词术语 机构和零部件 Standard Type GBT ICS 53.020.20 CCS J80 Status 现行 Issue Date 1986-11-01 Implementation 1987-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A