There are the same kinds of metal that brass (Cu-Zn alloy). Aluminum-brass(Cu-AI-Ni-Fe-Mn alloy) but brass is not useful without surface treatment like plating and clearing, aluminum-brass is not usefu l because the hardness of metal is too hiilh to process, to extrude, to cast, and surface color ...
Metal cellphone string is a popular and fashionable product. It is mainly made of zinc alloy and plated gold, silver, brass or nickel free. Especially, it is inlayed colorful and clear crystal. Its package is a nice gift box.
It is not only beautiful but also useful. It is widely used on ...
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