By the end of 2010, Asian province have found all kinds of mineral has gold, silver, manganese, alumina, tungsten, iron, copper, lead, zinc, facing stone and ordinary building stone, a total of more than 50 kinds, advantage mineral containing lead, zinc, tungsten, manganese, bauxite, limestone, etc.From 16 to 18 t when a quick lime powder…

With the rapid development of building industry, the sand has a big demand for building engineering. The river sand, as a local resource, can not reborn again at a short time with a phenomenon of decreasing of natural sand in the world even no natural sand existing in some area.