Copper door and imitation bronze is a new category, because it is based on metal copper and its chemical properties are stable, so it usually does not need much maintenance. But if there is a scratch on the surface of the coin, the protective layer will be damaged and the inside of the coin will be exposed. Bronze has a long life, but in the process of use, hashing is inevitable. As time goes on, the exposed copper will be oxidized by air to form green.

因此，在使用铜的过程中，首先要小心青铜表面，防止其尖锐物体划伤。如果是刮千年，我们也应该采取一些措施来减少铜的危害。先把干净的地方刮干净，再从空气中把青铜伤口上涂上指甲油或锈油硬币，这样大大减少了栅氧化。

Therefore, in the process of using copper, we should first be careful of the bronze surface to prevent its sharp objects from scratching. If it is a millennium, we should also take some measures to reduce the harm of copper. First clean the clean place, then smear nail polish or rust oil coins on the bronze wound from the air, thus greatly reducing the gate oxide.

二，仿青铜，如果在时间和条件丰富的情况下用普通青铜多功能清洁剂擦洗伤口，用干毛巾擦拭，长期保持青铜伤口干燥也会延缓铜锈生锈。

2、 Imitation bronze, if the time and conditions are rich, use ordinary bronze multifunctional cleaner to scrub the wound, and use dry towel to wipe, keep the bronze wound dry for a long time, it will also delay the copper rust.

无论哪扇门，都有一个被空气氧化的过程。青铜器也不例外，只有青铜器进入另一类的时间较长。因此，对青铜进行适当的维护保养，经常用空气清洗，可以大大延缓青铜的氧化时间，从而提高铜的寿命。

No matter which door, there is a process of air oxidation. Bronze ware is no exception. Only bronze ware has been in another category for a long time. Therefore, proper maintenance of bronze and frequent air cleaning can greatly delay the oxidation time of bronze and improve the service life of copper.