How to identify the quality of engineering crystal lamp
Many people do not know what is called engineering crystal lamp, in fact, engineering crystal lamp as the name suggests, that is, a kind of engineering lamp using crystal, or very popular. In addition to the project crystal lamp, there are some other materials of the project lamp, the common Chinese style project lamp, and the imitation marble project lamp and so on, so the project crystal lamp how to distinguish between good and bad If you want to distinguish the quality of the engineering crystal lamp, you can first touch the way, because the high-grade crystal is very sharp on the diamond corner, if it is the middle and low grade crystal, the feel is relatively smooth. At the same time, when identifying the quality of the engineering crystal lamp, you can also directly through the anti-counterfeiting mark on the lamp, because usually only the big brand produced by the crystal lamp, there will be such anti-counterfeiting mark, if there is no, it can only show that the choice of brand...