
HEXAGON HEAD BOLTS - PRODUCT GRADE B - REDUCED SHANK (SHANK DIAMETER = PITCH DIAMETER)
出版:Comite Europeen de Normalisation

专家解读视频
HEXAGON HEAD BOLTS - PRODUCT GRADE B - REDUCED SHANK (SHANK DIAMETER = PITCH DIAMETER)
出版:Comite Europeen de Normalisation
专家解读视频