HG/T 21600-2014 代替 HG 21600-1999 椭圆快开衬不锈钢人孔
HG/T 21600-2014.Lining stainless steel elliptic quick opening manhole.1总则1.0.1为了...
行业标准2023.08.12
HG/T 21600-2014.Lining stainless steel elliptic quick opening manhole.1总则1.0.1为了...
行业标准2023.08.12
HG/T 21599-2014.Lining stainless steel vertical hanging cover manhole.1总则1.0.1为了...
行业标准2023.08.12
HG/T 21598-2014.Lining stainless steel horizontal hanging cover manhole.1总则1.0.1...
行业标准2023.08.12
HG/T 21641-2013.Technical code for metal piping factory prefabrication.1总则1.0.1...
行业标准2023.08.12
HG/T 21604-2014.Lining stainless steel swing-type quick opening handhole.1总则1.0....
行业标准2023.08.12
HG/T 22802-2014. Code on content and depth for general planning of mining area o...
行业标准2023.08.12
HG/T 2342-2010.Vulcanizing accelerator DPG.1范围HG/T 2342规定了冀化促进剂DPG的要求、试验方法、检验规则、...
行业标准2023.08.12
HG/T 2491-2009.Rubber hoses and tubing for transferring water in automobiles.1范围...
行业标准2023.08.12
HG/T 22815-2016.Design code for drilling solution mining of chemical mine.1总则1.0...
行业标准2023.08.12
HG/T 22808-2016.Code for process design of beneficiation plant for chemical mine...
行业标准2023.08.12