GB/T 38516-2020 可渗透性烧结金属材料中流量平均孔径的测定
GB/T 38516-2020.Permeable sintered metal materials-Determination of average pore...
国家标准2023.07.28
GB/T 38516-2020.Permeable sintered metal materials-Determination of average pore...
国家标准2023.07.28
GB/T 38513-2020.Methods for chemical analysis of niobium hafnium alloys-Determin...
国家标准2023.07.28
GB/T 38447-2020.Micro-electromechanical system technology- Fatigue testing metho...
国家标准2023.07.28
GB/T 38446-2020.Micro-electromechanical system technology-Test methods for tensi...
国家标准2023.07.28
GB/T 38465-2020.Test method of artificial leather and synthetic leather-Determin...
国家标准2023.07.28
GB/T 38464-2020.Test method of artificial leather and synthetic leather-Determin...
国家标准2023.07.28
GB/T 38518-2020.Measurement of coating thickness on flexible film substrate.1范围G...
国家标准2023.07.28
GB/T 38540-2020.Information security technology-Technical specification secure e...
国家标准2023.07.28
GB/T 38556-2020.Information security technology-Technical specifications for one...
国家标准2023.07.28
GB/T 38555-2020.Information technology-Big data-Core metadata for industrial pro...
国家标准2023.07.28