HG/T 20711-2019.Design code for heating，ventilation and air conditioning of chem...

行业标准2023.08.17

DL/T 375-2010.General technical condition for outdoor distribution box.1范围DL/T 3...

行业标准2023.08.17

DL/T 347-2010.T-connector.1范围DL/T 347规定了T型线夹的型式、分类、技术要求、试验方法、验收规则、标志与包装及型号命名方法。D...

行业标准2023.08.17

DL/T 262-2012.On-line calculation guide for coal consumption of generating units...

行业标准2023.08.17

DL/T 258-2012.Determination of free silica in coal.1范围DL/T 258规定了煤中游离二氧化硅的测定方法。D...

行业标准2023.08.17

HG/T 5678-2020.Guideline of green factory' s assessment for oil and gas extracti...

行业标准2023.08.17

DL/T 392-2010.Technical guide for live working on 1000kV AC transmission line.1范...

行业标准2023.08.17

HG/T 5677-2020.Guideline of green factory' s assessment for petroleum refining i...

行业标准2023.08.17

DL/T 396-2010.Coding for voltage class.1范围DL/T 396规定了我国标准电压等级的编码方法及其相应的代码，包括直流标准...

行业标准2023.08.17

DL/T 425-2015.Test method for sodium hydroxide for industrial use in fossil-fire...

行业标准2023.08.17