GB/T 40079-2021阀门逸散性试验分类和鉴定程序标准
英文:Classification system and qualification procedures for fugitive emission type testing of valves GB/T 40079-2021介绍: 国家...
英文:Classification system and qualification procedures for fugitive emission type testing of valves GB/T 40079-2021介绍: 国家...