Button material can be divided into plastic (resin, plastic), metal buttons (copper, iron, alloy), natural (shell, wood, coconut shell, bamboo. Various materials to make buttons, technologies are not the same. Some buttons look like, even the industry people with the eyes do not see must be able to distinguish, so damage, scratch coat can tell.
Distinguish the plastic buttons and button resin buttons, plastic buttons and resin buttons, plastic buttons (including plastic) is generally formed by die-casting, so there will be a button on the side of the line, the parting line, some factories in this line may be removed in the subsequent processing, but his weight is light resin some (of course, some special plastic resin button is heavy). Mechanical carved and polished, so the surface without full model line, very smooth. But he is fragile, easy to scratch the surface, placed in boiling water will become soft.
To distinguish between copper and iron button, we only need to use this magnet to test whether the button is attracted by magnets. What's more, with a hard object to scrape the surface plating, we can know that copper buckle in copper (gold). Hasp is black, this is the color of raw materials
And, iron is black, this is the color of raw materials.How to determine to the alloy button?
Alloy button is relatively heavy, and it is still applied to the Extrusion and Forging Processin. All the molding line, generally do polishing and chasing, may not see, but his weight is very heavy, is solid.
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