亚洲午夜无码在线看_青青青国产最新视频在线观看_亚州中文无码一区_在线看黄a免费网站 久久强奷乱码老熟女-久久久亚洲精品无码-偷窥少妇久久久久久久久-少妇高潮喷水久久久久久久久

Silica Fume

Silica Fume

Silica fume, also known as micro silica, is scientifically named silica fume, which is collected and processed by a special collection device for the smoke and dust that escapes with the exhaust gas during the high-temperature melting of industrial silicon and ferrosilicon in industrial electric furnaces. In the escaping soot, the SiO2 content accounts for about 90% of the total soot, the particle size is very small, and the average particle size is almost nanometer level, so it is called silico

+ Read More

Welcome to your inquiry!

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