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The packaging scheme of auto parts mainly includes the following ways:Nude: It is suitable for parts that do not need any packaging protection, such as frames and tires, etc., and can be directly l...

Metal surface blackening treatment is a chemical surface treatment process, the main principle is to form an oxide film on the metal surface to isolate the air and achieve the purpose of rust preve...

1. AnodizingUsing the principle of electrochemistry, an alumina film is generated on the surface of aluminum and aluminum alloy, and the main functions of this oxide film are protection, decoration...

Non-ferrous metal rolling processing industry refers to the use of natural or artificial alloys, through hot processing, cold processing, pressure processing and other methods of metal materials in...