To date, advanced technologies are everywhere. Modern equipment and accessories are available at various factories and companies, hospitals, maternity hospitals use the latest, and sometimes expensive equipment, Internet and Satellite TV is available than ever before and are available for all. More and more people uses mobile phones and various ipad-s" to visit the "World Wide Web", and satellite navigation system will not surprise anybody. Koreans and U.S. citizens on implementing ideas that are currently difficult to even imagine – have become popular vehicles for various nebenzinovyh engines, for example in air.

Did not escape the latest developments and the construction and materials. This is most applicable to the special construction equipment: various types of cranes, tower cranes, excavators and rollers. Civil engineers in the design of the project also use modern computers and software. However, this does not mean that the construction of buildings all automated, we must remember that the important work of the builder of large, equally as the role of standard equipment, specifically, it can be replaced by current models, but from the inventory of qualified builder some material in any case will not go away. Abrasives course undoubtedly belong to these things. These materials are needed to handle a variety of items, for polishing, abrasive and is a material with sufficiently high hardness. Proceedings of the abrasive – is familiar to us all things: grinding wheels, sticks, sand paper.

In accordance with one of the classifications they fall into by nature and man: The first group, for example, quartz, and the latter – different alloys and artificial materials. There is also a huge variety of types of grinders. We should also note that the pass decade, and one of the oldest types of stroyrabot – welding, does not lose its relevance. The equipment in this area has not undergone any change visually over the past half century. Welding electrodes are also common. Used as evidence of these examples, we conclude that, along with new technologies should be used and more "old" materials.