Home / Standards / GB/T 5357-2023 GB/T 5357-2023 Active Keys for hexalobular socket screws 内六角花形扳手 Standard Type GBT ICS 25.140.30 CCS J47 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A