GB/T 7588.2-2020 电梯制造与安装安全规范第2部分:电梯部件的设计原则、计算和检验
GB/T 7588.2-2020.Safety rules for the construction and installation of lifts-Par...
国家标准2023.08.04
GB/T 7588.2-2020.Safety rules for the construction and installation of lifts-Par...
国家标准2023.08.04
GB/T 17389-2013.Recommended practice for the application of electrical submersib...
国家标准2023.08.04
GB/T 39271.1-2020.Rolling bearings-Load ratings for hybrid bearings with rolling...
国家标准2023.08.04
GB/T 39271.2-2020.Rolling bearings-Load ratings for hybrid bearings with rolling...
国家标准2023.08.04
GB/T 39255-2020.Gases and gas mixtures for welding and cutting processes.1范围GB/T...
国家标准2023.08.04
GB/T 11032-2020.Metal-oxide surge arresters without gaps for a.c. systems.1范围GB/...
国家标准2023.08.04
GB/T 39533-2020.Preparation and testing of foamed cement slurries at atmospheric...
国家标准2023.08.04
GB/T 15092.1-2020.Switches for appliances-Part 1 : General requirements.1范围GB/T...
国家标准2023.08.04
GB/T 14098-2020.Turbines and turbine sets-Measurement of emitted airborne noise-...
国家标准2023.08.04
GB/T 31815-2015.Self-cleaning coatings for building exteriors.1范围GB/T 31815规定了建筑...
国家标准2023.08.04