Wikiページ 'Popular Science Monthly/Volume 10/December 1876/More Concerning Mechanical Tools' の削除は元に戻せません。 続行しますか?
Cutting edges are typically doubled, and thus the chisel passes into one other group of instruments shears. The commonest of those is the strange family scissors opened and closed by hand
Wikiページ 'Popular Science Monthly/Volume 10/December 1876/More Concerning Mechanical Tools' の削除は元に戻せません。 続行しますか?