《BS 916-1953 Specification for black bolts, screws and nuts, hexagon and square, with B.S.W. threads, and partly machined bolts, screws and nuts, hexagon and square, with B.S.W. or B.S.F. threads.pdf》由会员分享,可在线阅读,更多相关《BS 916-1953 Specification for black bolts, screws and nuts, hexagon and square, with B.S.W. threads, and partly machined bolts, screws and nuts, hexagon and square, with B.S.W. or B.S.F. threads.pdf(21页珍藏版)》请在三一文库上搜索。
? ? ? ? ? ? ? ? ? ?