Hubei Jinwei New Material Co.,Ltd, is a leading producer of colloidal silica in China.
We are factory and exporting to the international markets. And have supplying colloidal silica 30% solid is used for investment casting over 30 year.
Product range 20~40% and particle size 6nm to 130nm for different industies. The production capability 8,000 tons per month.
Please contact us for more details.