Our company is specialized in trading and producing silica fume , which is also called microsilica. We have our own densified and packing factory. We have the ability of 1200 MT per month. Silica fume is widely used in the field of concrete and refractory, which can promote the performance of concrete .It is concrete admixture. If you have some other information about silica fume, please do not hesitate to contact me. I’m looking forward to being of one of your friends.