In Stock Farming Industry:As nutritious supplementary to zinc elements in animal bodies and as raw materials of organic and inorganic chelate.      In agricultural application: As water soluble fertilizer and trace element fertilizer,in order to improve soil compaction, enhance plant nutrient absorption and to facilitate corp growth.      In industrial applicantion:As an important auxiliary material of viscose and vinylon fibers and is also used in priting and dyeing,electroplating, flotation concentration and treatment of circulated cooling water.