TB/T 2823-1997.The protection distance of AC electrified railway to TV turntable...

行业标准2023.08.09

GB/T 40275-2021.Textiles-Quantitative analysis of bicompon Melting microscopy me...

国家标准2023.08.09

YY 91130-1999.二、技术要求2.咬骨钳应符合本标准的要求,并按规定程序所批准的图样及文件制造。3.鳃轴螺钉应符合WS 2- 40-74中M 4的规定...

行业标准2023.08.09

GB 50056-93.Code for design electrical equiment of electroheat installations.修订说...

国家标准2023.08.09

GB 50055-2011.Code for design of electric distribution of general-purpose utiliz...

国家标准2023.08.09

TB/T 2824-1997.Prestressed concrete round pole for electric railway substation.1...

行业标准2023.08.09

GB 50059-2011.Code for design of 35kV~ 110kV substation.1总则1.0.1 为规范变电站设计，使变电站的设...

国家标准2023.08.09

HG/T 3607-2007.Magnesium hydroxide for industrial use.1范围HG/T 3607规定了工业氢氧化镁的分类,要...

行业标准2023.08.09

GB 50060-2008.Cude for design ol high voltage eleclrical installation.1总则1.0.1 为...

国家标准2023.08.09

TB/T 2825-1997.Reinforced concrete round pole for electric railway substation.1主...

行业标准2023.08.09