Hebei Yuhuan Chemical Co.,Ltd.: Hebei Yuhuan Chemical Co.,Ltd. is a professional chemical factory and have more than thirty years of production experience, we have Litopoe, Barium sulfate, Zinc oxide, Tio2 etc, all of them can be widely used in coating, painting, printing ink, plastic, rubber etc. any demand pls contact yhchem at yhchem dot net, thanks!