
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)

專家解讀視頻
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)
專家解讀視頻