The choice of button accessories and season still have a relationship? The choice of metal buttons in the different seasons of the South and the North is very particular. Then let's talk about what changes will be made in the cold north and high temperature metal buttons in the South.
In fact, all these are caused by temperature changes. The temperature difference between day and night in the north is relatively large, and some places can even reach 30 degrees Celsius. Not to mention the temperature difference in the four seasons, the temperature difference can reach the sum of the four seasons in the south.
In physics, metals perform different characteristics at different temperatures. For example, pig iron becomes brittle and easily breaks when the temperature is relatively low. A slight impact will cause the iron buttons in the metal buttons to become two halves. So choose iron buttons in places where the temperature difference is large. Zinc buttons have the same properties as iron buttons. They are easily broken in the case of sudden changes in temperature, and must be carefully selected.
The cadmium button is easily vaporized when the temperature is high, and vaporization will cause some harm to the human body. In places with high temperature, it is better not to select cadmium buttons.
In the north, normal summer and autumn temperature changes will not be as obvious as in spring and winter. Therefore, when choosing metal buttons in spring and winter, pay attention to the chin!
In the spring and winter seasons in the north, care must be taken to use clothing with metal buttons. In the summer in the south, the harm caused by button vaporization should be avoided. Metal buttons should be used during the appropriate season.
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