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2. W.S. Huang, Stannum (Beijing, China: Metallurgical Industry Press, 2000).
3. H. Louis, Metallurgy of Tin (New York: McGraw-Hill Book Company, 1911).
4. International Tin Research Institute (ITRI),
https://www.itri.co.uk/about-itri
.
5. X.C. Song, Tin Metallurgy (Beijing, China: Metallurgical Industry Publishing Company, 2011).