Luwei Pharmaceutical Group Co., Ltd. was established in January 2007 produces vitamin C (API) 40,000 tons per year,(1)Ascorbic acid ;(2)Ascorbic acid 100-320mesh(3)Sodium ascorbate;(4)Calcium ascorbate;(5)Ascorbic acid granules Dc 95 DC 97(6)Sodium ascorbate granules;(7)Calcium ascorbate granules;(8)L-ASCORBATE-2-PHOSPHATE