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tin processing — Introduction preparation of the ore for use in various products. Tin (Sn) is a relatively soft and ductile metal with a silvery white colour. It has a density of 7.29 grams per cubic centimetre, a low melting point of 231.88° C… … Universalium
galvanizing — Protection of iron or steel against exposure to the atmosphere and consequent rusting by application of a zinc coating. Properly applied, galvanizing may protect from atmospheric corrosion for 15–30 years or more. If the coating is damaged, the… … Universalium
Wood shingle — Because trees were plentiful from the earliest days of settlement of North America, the use of wood for all aspects of construction is not surprising. Wooden roof shingles were lightweight, made with simple tools, and easily installed. Wooden… … Wikipedia

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