Home / Standards / GB/T 959.3-1986 GB/T 959.3-1986 Active Specifications for ring--Cutting rings 挡圈技术条件 切制挡圈 Standard Type GBT ICS 21.060.30 CCS J13 Status 现行 Issue Date 1967-03-06 Implementation 1987-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A