ZINC SULPHATE HEPTAHYDRATE TECHNICAL, GRADE AVAILABLE, ZINC SULPHATE HEPTAHYDRATE INDUSTRIAL GRADE, STOCK AVAILABLE ZINC - 22.95% COPPER - NIL OR 5 PPM MAX IRON FE - 10 PPM MAX HEAVY METALS - 10 PPM MAX Best for elecroplating industries, technical grade zinc sulphate heptahydrate
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