ZC-TECH strictly controls the growth of the original crystal particle of aluminum hydroxide flame retardant through the separation process to obtain fine aluminum hydroxide powder featuring single crystal form, complete crystal, narrow particle size, and high purity. During its drying, completeness of the original crystal is kept well, and prepared aluminum hydroxide flame retardant has good compatibility, dispersity, mobility, and excellent flame-retarding property in high polymer material. With flame retarding effect up to Level V-0, it is a new inorganic flame retardant for PU foam material, wire, cable, latex product, flame retarding building material, thermoplastics, flame retarding carpet, and other industries.