The plate is then returned to the engraving department, which completes the work, burnishing darks, engraving highlights, removing slight imperfections and otherwise perfecting the plate. 佚名.神奇的知识之书.
The first burnishing is on machines and this is followed by hand burnishing. 佚名.神奇的知识之书.
When manufacturers treat their wares to as little burnishing as possible, practically relying upon the buff alone for their finish after plating, the result is most unsatisfactory. 佚名.神奇的知识之书.
This is accomplished by means of a double-burnishing process after the article is plated and before it receives its final buffed finish. 佚名.神奇的知识之书.