Qingdao Humantic Tech & Trade Co., Ltd. was established in the coastal city of Qingdao. We mainly deal with import and export various fine quality ores and/or products, such as barite, wollastonite, molybdenum, dolomite, kaolin its semi or products. The purity barite can be (BaSO4) 98.4%, (Al2O3) 0.09%, (Fe2O3) 0.07% (SiO2) ...