Customized Ferrous Fumarate 99% Our History Nantong Focusee Biotechnology Co., Ltd. is a high-tech enterprise mainly engaged in the research, development, production and sales of functional food additives. The company has built a R&D and production base, the main products are Vitamin K2锛圡K-7锛? Phosphatidylserine(PS), Sialic acid锛圫A锛?and other nutrition and health raw materials. Our Factory...