GB/T 15092.1-2020.Switches for appliances-Part 1 : General requirements. 1范围 GB/T 15092 的本部分规定了器具开关的...

GB/T 14098-2020.Turbines and turbine sets-Measurement of emitted airborne noise-Engineering/ survey ...

GB/T 11032-2020.Metal-oxide surge arresters without gaps for a.c. systems. 1范围 GB/T 11032规定了交流无间腺金属氧...

GB/T 39533-2020.Preparation and testing of foamed cement slurries at atmospheric pressure. 1范围 GB/T ...

GB/T 39255-2020.Gases and gas mixtures for welding and cutting processes. 1范围 GB/T 39255规定了焊接与切制用保护气...

GB/T 39271.1-2020.Rolling bearings-Load ratings for hybrid bearings with rolling elements made of ce...

GB/T 39271.2-2020.Rolling bearings-Load ratings for hybrid bearings with rolling elements made of ce...

GB/Z 39124-2020.Method for chemical analysis of lead concentrates-Determination of antimony content-...

GB/T 17389-2013.Recommended practice for the application of electrical submersible cable system. 1范围...

GB/T 7588.2-2020.Safety rules for the construction and installation of lifts-Part 2: Design rules , ...