
Gas cylinders - 17E and 25E taper threads for connection of valves to gas cylinders Part 1: Specifications (ISO 11363-1:2010 + Cor. 1:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Gas cylinders - 17E and 25E taper threads for connection of valves to gas cylinders Part 1: Specifications (ISO 11363-1:2010 + Cor. 1:2011)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频