Shandong Guangtongbao Pharmaceuticals Co., Ltd., is the largest manufacturer of chlorophyll series products and vitamin k1 series product, natural phytol, menadione, 2, 6, diphenyl-phenol. More than 85% of our products are exported to USA, Europe, Japan, Korea, Southeast Asia, Australia and other more than 20 countries. Our products enjoy high reputation in the world market.
