factory direct sale colloidal gold - China Manufacturers, Factory, Suppliers

HONGWU has had the pleasure of helping academic researchers and industry innovators alike reach their goals by providing excellent materials and expertise. factory direct sale colloidal gold, 2-5nm , Sno2 Nano , Gold Nanopowder , Hongwu is a very powerful nanomaterial manufacturer, it was established in 2002, the production and sales of nano and micron powders and dispersions, etc. At the same time, it has passed the quality certification of ISO9001. In cooperation with many well-known manufacturing and scientific research institutions around the world, our products are all over the world. Our featured products in below,