Feldspar is the most common ore in the earth crust and it even appears on the moon and in the aerolite. As a material of glass making, feldspar is also used as c

Dolomite is kind of carbonate mineral which includes iron dolomite and manganese dolomite. Calcined dolomite can be processed to make dolomitic limestone which i

Birnith crushing machine are usually used to crush concrete, glass, porcelain, marble, granite, bricks, blocks, asphalt and reinforced concrete. Recycling concre