In the turning shop the process of industrial production proceeds into mechanical workmanship, done by removing excess metal. The turning involves rotation of the piece and mostly rectilinear movement of the tool (while in milling and drilling the tool can have a rotating motion).
Cleaning / grinding / polishing are metalworking processes that prepare the pieces for the true finishing involving nickel-plating, chrome-plating and gilding. The purpose of grinding and polishing is to remove microscopic irregularities and to make the surface as smooth as possible, so its reflection of the light will be more uniform.
Finally, chrome-plating / coating: this is a chromium covering of a product, done with electroplating. The faucets are ready to be chromium-plated or coated in the desired finish.
Quality control, assembly, testing, packaging and shipping complete the production cycle.