Specification :

3 N, 4N, 5N, 6N metal silicon, polycrystalline silicon solar energy (99.9999%), single crystals silicon and a variety of different size metal silica fume; supply 5 N high-purity germanium dioxide (Geo2) , 6N ingot germanium (Ge), single crystals of germanium (Ge). Recovery of germanium materials, ores containing germanium, containing germanium waste