
HIGH TENSILE STRENGTH HEXAGON FIT BOLTS WITH LARGE WIDTH ACROSS FLATS FOR STRUCTURAL BOLTING
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)

专家解读视频
HIGH TENSILE STRENGTH HEXAGON FIT BOLTS WITH LARGE WIDTH ACROSS FLATS FOR STRUCTURAL BOLTING
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)
专家解读视频