Han Billion Metals and Chemicals Co., Ltd.
Profile: Han Billion Metals and Chemicals Co., Ltd. offers nonferrous metals, noble metals and metal powders. Vanadium pentoxide catalyst is also named as sulfuric acid catalyst. It is a material to promote the oxidation of sulfur dioxide. selenium dioxide is a white crystal powder. It is soluble in water and ethanol. It is used as an additive in electrolytic manganese and also as an activator for plating industry.