Hebei Weiran Technology Co., Ltd. is aproduction, processing, sales of industry andtrade in one of the enterprises, specializingin the production of quartz sand, calciumcarbonate,dolomite, carborundum pearlsand, mullite sand, volcanic stone, vermiculite,mica and other non-metallic mineral products,products sold throughout the country,.exported to Europe, America, Southeast AsiaMiddle East and other countries, Mainly usedin construction, chemical industry, metallurgy,ceramic rubber, horticulture and otherindustries.