Many of the products and technologies around us are of a generation. The most typical is iphone, which is divided into 4s, 5s, 6plus and other products of different generations, as well as the mobile network we use on mobile phones, as well as 3G and 4G. This kind of delegation can give people a clear concept and deep impression: it is the latest style, more powerful, more exquisite design; or represents a major technological breakthrough, subverting the previous effect, and so on.

For the most popular areas, this kind of generation recognition is very high, and consumers are very recognized. But in fact, in some less popular areas, there are also different generations, just not so eye-catching. For example, our stone nursing technology belongs to the absolute cold door industry, but technology has been developing and progressing all the time. Since the 1980s, stone nursing technology has made unprecedented progress and development, and there have been several technological breakthroughs.

Among them, stone polishing technology, we have experienced, can also be divided into at least three generations. All of them are stone polishing technology. The reason why they can be regionalized is that the polishing technology of stone in different periods has undergone fundamental changes in its principle, material and technology, resulting in fundamental differences. This clear demarcation, on the one hand, helps us to understand what stone polishing is like; on the other hand, knowing the polishing technology of the past, we will naturally be able to understand the future technological development, where to go.

1. Paraffin waxing age: the technology of polishing stone with waxy composition.

2. Age of stone crystallization: The technology of using oxalic acid, fluorosilicic acid and other acidic materials to react with calcareous components of stone to produce polishing effect.

3. Stone glaze-sealing stone: The technology of producing polishing effect by physical filling and micro-rheological action with silica (SiO 2) as the main raw material.