
ISO 7689. Aerospace. Bolts, with MJ threads, made of alloy steel, strength class 1 100 MPa. Procurement
出版:British Standards Institution

專家解讀視頻
ISO 7689. Aerospace. Bolts, with MJ threads, made of alloy steel, strength class 1 100 MPa. Procurement
出版:British Standards Institution
專家解讀視頻