Home / Standards / GB/T 1151-2023 GB/T 1151-2023 Active Internal combustion engines—Main and connecting rod bearings—Specifications 内燃机 主轴瓦及连杆轴瓦 技术条件 Standard Type GBT ICS 27.020 CCS J92 Status 现行 Issue Date 2023-05-23 Implementation 2023-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A