nano silica

Nanosilica, also called quartz dust or silica dust, is a material that, like SF, is characterized by its high SiO2 percentage, over 99%. nano slot 4d The use of nanosilica (crystalline SiO 2) reduces the volume of cement and completes the grading curve of the aggregate mix in the zone of the smallest sizes. harga raket yonex nano speed 5000