拿起彩石金属瓦的样品，看样品的断层的密度，和构成颗粒的大小。密度大，质量且重（彩石金属瓦质轻，不是特别重，此点要把握好）那就是比较好的彩石金属瓦，还有看表面的做工是否有正常的光泽。彩石金属瓦更重要的原材料由三大类组成，彩砂，钢板加胶水。看彩砂颗粒是否大小均一致，有无明显的掉砂现象，钢板我们工厂钢板是采用镀铝锌钢板，背面有绿色的雪花镀层，这则是加了锌层。
Pick up the stone tile samples, see samples of fault density, particle size and composition. High density, quality and weight (color metal tile light, is not particularly heavy, this point to grasp) that is good color metal tile, and look at the surface of the work is a normal luster. The raw material is the most important color stone metal tile composed of three categories, sand, plate and glue. Look at the size of sand particles is uniform, there is no sand off phenomenon obviously, our factory is using steel plate galvanized steel, snow coating on the back of the green, it is added to the zinc layer.

其二：称比重
Second: weighing
彩石金属瓦国标规格是1345*420mm，其重量为2.7公斤，钢板的厚度为0.4，具体可根据客户自行定制。
Color metal tile GB specification is 1345*420mm, the weight of 2.7 kg, the thickness of the steel plate is 0.4, according to the specific custom.
其三：用水煮
Third: boil with water
用烧滚的开水煮上一天一夜，看看砂子是否有褪色现象，如果采用的是染色砂，那煮上几个小时，褪色现象是显而易见的，而烧结砂却不会出现这种现状。 雨后的一些染色砂的瓦片更亮，是因为一般的劣质彩砂会渗水，更终将会导致彩砂颜色褪去。
With the boiling water boil for one day and one night, to see whether there is sand fade if the stain is sand, the cook for several hours, the phenomenon of fading is obviously, and the sintering sand but not this situation. Some tiles dyed sand rain is brighter, because the general poor sand water seepage, will eventually lead to sand color fade.