The output of cut nails for the same year was 2,106,799 kegs. Edward W. Byrn.十九世纪发明进展.
They were dropped into the stream, the current turned on, and five or six kegs of nails or bundles of wire were raised each trip. 佚名.神奇的知识之书.
In 1897 the wire nails produced in the United States amounted to 8,997,245 kegs of 100 pounds each, which nearly doubled the output of 1896. Edward W. Byrn.十九世纪发明进展.