Button materials are roughly divided into plastic (resin, plastic), metal buttons (copper, iron, alloy), natural (shell, wood, coconut shell, bamboo). All kinds of materials to make buttons, the process is not the same. Some buttons look the same, even people in the industry with the eyes may not be able to distinguish clearly, so damage, scrape the coat to distinguish.

Buttons distinguish plastic buttons and resin buttons, plastic buttons and resin buttons, plastic (including a variety of plastic) buttons are generally die-cast, so there will be a line on the edge of the button, the mold line, some factories may remove this line in the subsequent processing, but his weight will be lighter than resin (of course, some special plastic will be heavy). Resin buttons are mechanically carved and then polished, so there is no full mold line on the surface and it is very smooth. But it is fragile, scratches its surface easily, and softens when left in boiling water.

How to tell the difference between a copper button and an iron button:

Copper and iron buttons, this with a magnet test to know, and with a hard object to scrape the surface electroplating, copper buckle surface in the copper color (gold). The iron buckle is black, which is the raw material color.

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