HG/T 20691-2006.Regulations for operative technique of high pressure's spurtal p...

行业标准2023.08.08

HG/T 20685-2005.Unified specification of terminology for chemical industrial fur...

行业标准2023.08.08

HG/T 20689-2007.Specification on content and procedure of basic engineering desi...

行业标准2023.08.08

HG/T 21574-2008.Chemical equipment lifting lugs and engineering technical specif...

行业标准2023.08.08

HG/T 21559.3-2005.Stainless steel wire corrugated packing standard.1总则1.0. 1HG/T...

行业标准2023.08.08

HG/T 21510-2005.Specification on content and procedure of preliminary design fil...

行业标准2023.08.08

HG/T 21557.3-2006.Plastic cascade ring packing.1总则1.0.1 目的。为了在工程设计及工程建设中应用塑料阶梯环填...

行业标准2023.08.08

HG/T 20628-2009.PTFE envelope gaskets for use with steel pipe flanges(Class desi...

行业标准2023.08.08

HG/T 20681-2005.Technical stipulation of civil-load requirements for the design...

行业标准2023.08.08

HG/T 20673-2005.Specification for structural design of compression house.1总则1.0....

行业标准2023.08.08