GB/T 39789-2021 焊缝无损检测 金属复合材料焊缝涡流视频集成检测方法
GB/T 39789-2021.Non-destructive testing of welds- Eddy current-video integrated...
国家标准2023.08.05
GB/T 39789-2021.Non-destructive testing of welds- Eddy current-video integrated...
国家标准2023.08.05
GB/T 25387.1-2021.Wind turbines generator system-Full-power converter-Part 1:Tec...
国家标准2023.08.05
GB/T 25387.2-2021.Wind turbines generator system-Full-power converter-Part 2 :Te...
国家标准2023.08.05
GB/T 26779-2021.Hydrogen fuel cell electric vehicle refueling receptacle.1范围GB/T...
国家标准2023.08.05
GB/T 39892-2021.Specification of reporting and processing of motor vehicle produ...
国家标准2023.08.05
GB/T 39906-2021.Requirements on brand management.1范围GB/T 39906确立了品牌管理的原则,并规定了品牌管...
国家标准2023.08.05
GB/T 39775-2021.General principle for energy management performance assessment.1...
国家标准2023.08.05
GB/T 39857-2021.Specification of photovoltaic power generation efficiency.1范围GB/...
国家标准2023.08.05
GB/T 39757-2021.Building construction machinery and equipment-Code of practice f...
国家标准2023.08.05
GB/T 39747-2021.Code of practice for the safe use of supported elevating work pl...
国家标准2023.08.05