the two kinds of natural diamond

Natural diamond as found in nature is the hardest material. Using it as raw materials to produce diamond grinding wheel, with fast cutting, wear characteristics, the majority of users. But the natural diamond is limited, so synthetic diamond is made. So we often  core drills say that the diamond wheel is divided by the two kinds of natural diamond and synthetic diamond.Using synthetic diamond as the main diamond abrasive wheel made of diamond substantially retains the characteristics of the grinding sharp, high efficiency, to maintain a good precision, the actual production applications, but also has a large-scale use of natural diamond and a large natural resources, faced with fewer and fewer of the situation, so as to enhance the price of such products, in most respects, this diamond wheel than the synthetic diamond has certain advantages, but in some respects, but also to some  abrasive tools extent artificial diamond make up for the shortcomings of such a diamond wheel, the two complement each other.
Diamond grinding wheel sharp, high efficiency and high precision grinding, due to its unique nature has been widely used in various industries.A grinding wheel rotating at high speed process, if flying or chipping will cause casualties, mainly due to quality, but off wheel or wet tile saw  chucking irregularities.
Second, the process of the grinding wheel will produce a lot of powder layer, the operator needs to wear a mask, or prolonged inhalation of this powder layer can cause respiratory disease, lung disease