Hunan qingChong manganese job Ltd. (ISO9001-2008)Was founded in 1984. It has two production lines of Leimeng Grinder,which can yearly produce 3000 tons of quality manganese carbonate powder and 5000~10000 tons of natural manganese dioxide powder,in addition,we cooperate with another company to exploit a manganese mine,from which we can get about 25000 tons of manganese ore every year.We also have a best chemical testing center in manganese ore origion,Xiangtan,which can test so many chemical...View More