The Smith's Pocket Companion, Containing Useful Information and Tables on Iron and Steel, for the Use of Smiths and Steel Workers

ISBN: 9781330259955 出版年：2016 页码：144 Julius Marquardt Forgotten Books

The art how to work and turn iron into all required shapes and forms may be considered the profession; this can not be obtained by the wave of the'hand. It takes years of practice and close attention to the trade, and by faith fully studying theoretically as well as practically, a man may become a master of his trade.