Quanzhou Winitoor Industry Co., Ltd was established in 2004 in Fujian Province of China.Our company specializes in trading and manufacturing micro silica.We have owned three factories in Sichan. Yunnan.Lanzhou.
Winitoor has built excellent business relationships with customers from all over the world, including customers from Japan, Korea, Europe and the Middle East. Especially in the Middle East,We export thousands of microsilica to gulf countries Monthly and enjoy very high reputation from our customers.
Micro-silica fume (scientific name "silica fume," Microsilica or Silica Fume), in the smelting of ferrosilicon and industrial silicon, silicon through the flue gas emitted by steam oxidation, the specially designed filter collected the amorphous powder like silica (SiO 2). Micro-silica fume average 0.1-0.15 μ m in diameter, the size of several cement average 1.0%. Surface area for the 15-27 m 2 / g, with strong surface activity.