Tin-coated steel sheet, no. 2 (tin free steel, TFS) is a black steel plate brought another instead of coating Tin, to reduce production costs. Currently, there are three coating. -Phosphate coating and thin film, now a Used for canned beer. Citrus juices and make various kinds of metal tanks. -Coated with aluminium. Resistance to corrosion due to moisture, but do not apply to foods that are acidic or alkaline, high. -Chromium and chromium oxide coating to prevent corrosion, can be used to make the popular good canned seafood. Condensed milk, etc.
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