Si: 99.3%min,Fe: 0.3%max,Al: 0.3%max, ... tons in Yingjiang, Yunnan province.Silicon Metal, also called Crystal Silicon, is silver-gray,hard-brittle material with high melting point, good heat resistance ... manufacturing, ADC12, A356, etc.Organic Silicon manufacturing, such as silicone rubber, silicone resin, silicone oil. High-purity semiconductor manufacturing and polysilicon manufacturing.Production ...