Home / Standards / GB/T 43898-2024 GB/T 43898-2024 Active Seamless precision steel tubes for engineering machinery hydraulic cylinder 工程机械液压缸用精密无缝钢管 Standard Type GBT ICS 77.140.75 CCS H48 Status 现行 Issue Date 2024-04-25 Implementation 2024-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A