Silica is the manufacture of glass, quartz glass, water glass, optical fiber, and refractory materials. When the time is perfect crystalline silica crystal; silica gel of dehydration is agate; colloidal silica water after solidification become opal; silica grains less than a few microns of nano-silica, is composed of chalcedony, flint, secondary quartzite. Silica is widely present in nature nano-silica manufacturers, and other minerals constitute the rock. Called good quality natural silica nano-silica Which silica, about 12 percent of the earth's crust by mass, and its presence in the form of two crystalline and amorphous states. Quartz crystal is crystalline silica, having a different crystal form and color. Colorless and transparent quartz crystal is commonly referred to as crystal. Banded or layered with color ring is called agate (impurities). Which high-volume nano-silica nano-silica, Weifang Fuyuan provided by the Environmental Protection Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) strong, credible, Shandong Weifang other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Weifang Fuyuan and you hand into the brilliant, for a better future!