Print In the printing, a copper plate was used for photoengraving. The surface-polished copper plate was sensitized with...
Papermaking In today's society where information is ever-changing, paper consumption is large. The surface of the paper ...
Clock The production of timepieces, timers and devices with clockwork, most of which are made of ""watch brass". The all...
Air conditioner and freezer The temperature control of air conditioners and freezers is mainly achieved by evaporation ...
Aircraft The navigation of the aircraft is also inseparable from copper. For example, wiring, hydraulic, cooling and pne...
Railway The electrification of railways requires a large amount of copper and copper alloys. More than 2 tons of profil...