SIO2 90%min LOI 3%max H2O 1.0%max powder or granule grey colour or light grey as customer favor Microsilica also known as Silica fume, it is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnace as a by product of the production of...

Ash machine be made by ourself and collect ash do process for bulk, raw material densify 150-200kg/M3 became 500-700kg/m3 Our technical engineers  are invented and researched the machines andchoices some  of good silicon metal plants and Ferrosilicon factories...