First, the main thing is to look at his material is a method of ranking like this: copper material is the most expensive, durable and does not fade, not easy to qualitative change, and then is the steel material, then the alloy tired, that is The plastic material is the worst.
Second, take a look at the amount of weight measurement is generally very light, then the material is based on inferior materials, heavier than the weight of good. For example, the vast majority of military canvas belt buckle is made of zinc alloy weight, texture.
Third, look at the surface treatment in addition to a small number of stainless steel buckles without plating, the other have been surface treatment, if the surface bruises, scratches, blisters, pitting, uneven color, yellow and so on, is a bad product.
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