
Gas cylinders - Refillable seamless steel tubes of water capacity between 150 l and 3000 l - Design, construction and testing
出版:Ente Nazionale Italiano di Unificazione (UNI)

专家解读视频
Gas cylinders - Refillable seamless steel tubes of water capacity between 150 l and 3000 l - Design, construction and testing
出版:Ente Nazionale Italiano di Unificazione (UNI)
专家解读视频