
WELDING CONSUMABLES - TEST METHODS - PART 2: PREPARATION OF SINGLE-RUN AND TWO-RUN TECHNIQUE TEST SPECIMENS IN STEEL
出版:Comite Europeen de Normalisation

专家解读视频
WELDING CONSUMABLES - TEST METHODS - PART 2: PREPARATION OF SINGLE-RUN AND TWO-RUN TECHNIQUE TEST SPECIMENS IN STEEL
出版:Comite Europeen de Normalisation
专家解读视频