Knowledge of several clays: fire-resistant clay, hard clay, soft clay, alumina clay.
Jaw crusher frame is divided into two main kinds of a kind of welding machine frame, a kind of cast steel frame. These two frame each have an advantage, while welding frame has certain advantage in price, but in the process of production, the welding frame also can appear some fatal fault, it is broken…
Coal gangue is a solid waste produced in coal production and processing as well as one of the most quantity solid waste ejected. So far the coal gangue has piled and excess more than 4 billion ton with more than 0.1 billion ton/year increasing.