Dongguan Kai Union Surface Treatment Technology Development Co., Ltd. is one to solve all kinds of metal rust as the main direction of development of new surface treatment technology development company, specializing in all kinds of metal passivation, rust and polishing agents, production and sales. China is currently one of the earlier studies in the passivation and the most comprehensive range of businesses. The main products involved in stainless steel, the surface of stainless steel iron, copper, aluminum and other materials processing, widely used in metal, electronics, molds, machinery and many other areas. Product range, excellent quality, now has a number of independent patent technology. Some of these products in the field of passive also represents leading international technical standards.