Dongguan city Changan Chuangyi dyeing raw materials operating the Department of   

Dongguan City, Changan Chuangyi specializing in the production of non-ferrous metal dye: natural antique bronze, bronze water, ancient silver black agent, copper blackening agent, silver black coffee agent, agent, agent, green patina bronze iron stain rust, steel blackening agent, 201304.316 stainless steel blackening agent, OEB, dyeing agent, bronze brown Silver water, zinc alloy, aluminum blackening agent and Aluminum Alloy blackening agent, blackening agent, nickel tin and copper blackening agent, cupronickel tin copper with no hair, black nickel, nickel alloy, copper blackening agent, cleaning agent, Tun activating agent, anti rust water, oil removal powder brush, toner, brightener etc. nonferrous metal stain