Traditional architectural hardware, mainly made of metal, such as ordinary carbon steel cold-rolled steel strip, cold-drawn low-carbon steel wire, various specifications of copper , Aluminum, light metal alloys, malleable cast iron, etc. Surface treatment materials include copper, nickel, chromium, silver and so on.
In recent years, small hardware made of various non-metallic materials, such as ceramics, glass, rubber, and plastics, have been developed. Especially all kinds of plastic hardware made of polyamide, polypropylene and other engineering plastics, such as bathroom hardware and plumbing hardware.
These plastic products are not only of high quality, beautiful appearance, color and luster, good decorative effect, but also high production efficiency, low cost, can save a lot of non-ferrous metals, and their applications have become increasingly widespread.