Building aggregates. The building aggregates equipment of SKY includes not only a series of single equipment of coarse crushing, intermediate and fine crushing, sand making and shaping, but also a batch of standardized design products of production line on the basis of many years of experience.
Track classifications Q. What is an 'A' class line, or a 'Q' class line, etc.? The permanent way sections are classified by IR according to the maximum speed (or more precisely, the maximum speed proposed for the immediate future) that the tracks are capable of supporting.