Classification:
1. Look at the allowable deviation of specifications and dimensions, the allowable tolerance of flatness and angle.
2. As well as the appearance quality, surface finish and other indicators, marble slabs are divided into three grades: excellent, first-class and qualified;
3. The classification and identification of marble slabs are mainly identified by the detection of instruments and measuring tools.
1. In addition, the strength and water absorption of marble slabs are also important indicators for evaluating marble quality.
2. The glossiness of the marble slab surface will greatly affect the decorative effect.
3. Of course, the surface gloss of the same material between different grades will also have a certain difference.
4. Generally speaking, the polished surface of high-quality marble slabs should have mirror-like luster, which can clearly reflect the scenery. The polishing degree is also polished by a 7-step polishing pads, refined processing, high-quality gloss, more favored by customers.
5. However, due to the different chemical compositions of marbles of different qualities, even products of the same grade have great differences in gloss.
Choose pattern color
1. Marble slabs are colorful, diverse in tones, and have different patterns. This is the precious charm of marble slabs.
2. Basically the same color tone, small color difference, and beautiful patterns are the specific manifestations of good varieties, otherwise it will seriously affect the decorative effect.
Check appearance quality
1. Because marble is naturally formed, defects are inevitable.
2. The appearance of marble slabs of different grades is different.
3. At the same time, the pros and cons of processing equipment and measuring tools are also the cause of sheet defects.
4. According to national standards, all grades of marble slabs are allowed to have certain defects, but the superior products are not so obvious.
5. Some boards are not full (warped or dented), the board has defects (cracks, sand holes, stains, etc.), and the board specifications are different (such as missing edges and corners, and the board is not correct).
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