
GAS CYLINDERS - COMPATIBILITY OF CYLINDER AND VALVE MATERIALS WITH GAS CONTENTS - PART 1: METALLIC MATERIALS (ISO 11114-1: 2012/AMD 1:2017)
出版:Comite Europeen de Normalisation

专家解读视频
GAS CYLINDERS - COMPATIBILITY OF CYLINDER AND VALVE MATERIALS WITH GAS CONTENTS - PART 1: METALLIC MATERIALS (ISO 11114-1: 2012/AMD 1:2017)
出版:Comite Europeen de Normalisation
专家解读视频