
WELDED STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - NON-ALLOY STEEL TUBES WITH SPECIFIED ROOM TEMPERATURE PROPERTIES
出版:Comite Europeen de Normalisation

专家解读视频
WELDED STEEL TUBES FOR PRESSURE PURPOSES - TECHNICAL DELIVERY CONDITIONS - NON-ALLOY STEEL TUBES WITH SPECIFIED ROOM TEMPERATURE PROPERTIES
出版:Comite Europeen de Normalisation
专家解读视频