Buy silica fume for refractory brick
There are many kinds of raw materials for refractory bricks, which are mainly divided into six categories: soil, stone, sand, ore, powder and others. 1. soil: aluminum soil, clay, kaolin, diatomite; 2. stone: fluorite, kyanite, andalusite, forsterite, vermiculite, mullite, pyrophyllite, dolomite, chlorite, sillimanite, spinel, silica; 3. sand: ceramic sand, zircon…