The buttons are roughly divided into metal button classes (copper, iron, alloy), natural (shells, wood, coconut shells, bamboo. Various materials must be made into buttons, the craftsmanship is different. The same, even industry people may not be able to distinguish them clearly with their eyes, so it is destroyed and scraped the coat to clearly divide them.
How to distinguish the copper button and iron button? : Copper and Iron Materials button. This is known as a magnet. It also uses hard objects to remove surface electroplatidas and brass (golden) in the copper buckle surface. The iron buckle is black, this is the color of the raw material.
How to judge that it is the alloy button? : The alloy buckle is relatively heavy, which is made of die. All mold lines are generally polished and polished. It may not be seen, but its portion is heavy and solid.
