... main crystal structure is of cubical shape.Application:1.Used as a fire retardant in the membranes of ... PVC,PP ,PE ,PS ,ABS,PU ,etc..2. Used as filling, covering agents and retardants for rubber, ceramics, ... enamels, fabrics, and fiber products.3. Used as pigments and retardant in oil paint and coating material ... of advance payment or original L/C. Sell antimony trioxide used as retardants