AngelIslandconsists mainly of rocks of theAngelIslandterrane of the Franciscan. These rocks differ from much of the Franciscan in that they are metamorphosed to the blueschist facies. Blueschists form only under the unusual conditions of extremely high pressures and relatively low temperatures that are characteristic of subduction zones.

Production line of the building to meet the demand of the production process, in order to improve the efficiency of production, automated production line into the mainstream, as established on the basis of the jaw broken equipment and iron ore production line. In this production line, to do fine, both equipped with jaw broken used…