欧美日韩1区|在线看黄免费|午夜精品成人|亚洲最大天堂网,国产精品视频一区二区三区四区五区 ,我的女友在线观看完整版免费未删减动漫电影,亚洲精品99久久久久久

Silicon Metal

Silicon Metal

Metal silicon, also known as industrial silicon, is a product smelted from silica and carbonaceous reducing agents in submerged arc furnaces. The main component silicon content is usually above 98.5% and below 99.99%. The remaining impurities are iron, aluminum, calcium, etc. . In China, metal silicon is usually divided into different grades such as 553, 441, 421, 3303, 2202, and 1101 based on the content of iron, aluminum, and calcium in metal silicon.

+ Read More

Welcome to your inquiry!

Service Hotline:+86 15837207537    Whatsapp:8615837207537    Email:info@lsalloy.com