Shandong Guangtongbao Pharmaceuticals Co., Ltd. is located in Qingzhou City. We are the most competitive professional manufacturer of chlorophyll products and vitamin k1 oil and powder. Our business scope includes fine chemicals, pharmaceuticals, foodstuff and fodder import and export business. Shandong Guangtongbao Pharmaceuticals Co., Ltd. was established in 2004. Our predecessor was Shandong Province Qingzhou Biological & Chemical Institute for Mulberry Silkworm Eggs, which was engaged in the research and development of chlorophyll products. We are engaged in the production of chlorophyll products. After thirty years of unremitting efforts, we have developed several series and more than twenty kinds of products, such as chlorophyll paste, oil-soluble copper chlorophyll, zinc chlorophyll, ferrous chlorophyll, sodium copper chlorophyllin, sodium magnesium chlorophyllin, sodium ferrous chlorophyllin, sodium zinc chlorophyllin, vitamin k1 oil, vitamin k1 oxide, vitamin k1 powder,... [Details]