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http://www.ttd-steel.com/metal....-packaging/tin-free-
Tin free steel is tinplate where Sn (tin) is the plating, tinplate is also called tin-plated iron tinplate is the common name for tin-plated thin steel plate, the English abbreviation for SPTE, is a cold-rolled low-carbon thin steel plate or strip plated with commercial pure tin on both sides. Tin mainly plays a role in preventing corrosion and rusting. It combines the strength and formability of steel with the corrosion resistance, solderability and aesthetic appearance of tin in a material that is corrosion resistant, non-toxic, strong and ductile.Custom Tin Free Steel
website:http://www.ttd-steel.com/metal....-packaging/tin-free-