
STEEL TUBES FOR PRECISION APPLICATIONS - TECHNICAL DELIVERY CONDITIONS - PART 5: WELDED COLD SIZED SQUARE AND RECTANGULAR TUBES
出版:Comite Europeen de Normalisation

专家解读视频
STEEL TUBES FOR PRECISION APPLICATIONS - TECHNICAL DELIVERY CONDITIONS - PART 5: WELDED COLD SIZED SQUARE AND RECTANGULAR TUBES
出版:Comite Europeen de Normalisation
专家解读视频