we are one of leading pigment manufacuters in China and we specialize in producing iron oxide series, for example iron oxide red, yellow, black , green, blue, zinc oxide, carbon black, lithopone, titanium dioxide,chrome oxide????????harge(lead oxide yellow????????ad oxide red and so on. we can also produce according to your specifications. If you have any requirement and question, please don????????sitate to contact me,I am looking forward to receiving your reply early.