GB/T 17394.2-2022金属材料里氏硬度试验第2部分:硬度计的检验与校准国家标准
英文:Metallic materials—Leeb hardness test—Part 2: Verification and calibration of hardness testers GB/T 17394.2-2022介绍: 国...
英文:Metallic materials—Leeb hardness test—Part 2: Verification and calibration of hardness testers GB/T 17394.2-2022介绍: 国...