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

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