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sulfuric acid manganese salt (1:1) monohydrate

1.manganese sulphate of 98-99% 2.Mn of 32.20% 3.lowest contect of heavy metal 4.two factories 5.ISO9001:2008 and FamiQs

High purity and cheap price L-Ascorbic Acid Sodium Salt

1.wholesale from factory directly 2.high quality and best service 3.meet with the international standard 4.natural product