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As we all know, precious metals gold, silver has a strong ductility, texture is soft, once hit by hard objects, will leave traces. Therefore, the production of gold and silver commemorative coins.

First of all, to avoid a direct bump with the hard objects, friction, not at the same time a few coins in a pocket, the application of soft cloth or paper, respectively, packaging. Second, to prevent hand pollution, gold and silver commemorative coins are shipped with a thin layer of sealed transparent plastic bags, so that money from the role of oxidation, easy not to come up with it, directly touch, watch the coins , The conditional should bring thin gloves, with the thumb and index finger pinch the edge of gold and silver commemorative coins to prevent perspiration pollution surface.

 Again, avoid contact with acidic substances. Gold and silver commemorative coins should be stored in a ventilated, dry place collection.

It is the basic skill of the coin collectors to choose the packaging means. In general, the optional packaging is not including PVC plastic box, polyester film bags, paper bags, etc., optional materials are polyethylene, polypropylene, polyester film. In order to facilitate the appreciation, but also on the basis of transparent packaging into the collection of books, the key point is that can not use PVC-containing materials to store coins, its harm must not be underestimated. In order to isolate the air, generally there are two methods of airtight and vacuum packaging. Airtight refers to the isolation of air but not the net package of air; vacuum packaging so that the packaging material and the coin surface in close contact. The place where the hand touches the coin is usually the place where the corrosion first blackens.

In addition, some collection of friends, have purchased the goods with poor gold and silver commemorative coins, always want them to engage in a little beautiful, in the discovery of currency surface dirt, often used to clean gold, silver jewelry to clean the way .

 In summary, the production of these gold and silver commemorative coins, generally do not take any measures, so he continued to remain as it is, blindly pursue its "smooth as new" is not desirable.