Selenium +99.999% 1.Purity :99.99%,99.999%,99.9999% 2.Powder, ingot, shot 3.Test Machine:ICP-Ms ... 4.Over 10 years supplying Selenium (Se)1, Physical character ... used in the preparation of the material of the selenium drum, photoelectric material, electrostatic photogragh and other materials ... , then covered with a sealed plastic film bag. Selenium shot