Corundum: Use as a Gemstone, Abrasive, .
Corundum is used as a gemstone, abrasive, refractory and much more. Red corundum is a ruby, blue is a sapphire, any other color is a fancy sapphire. Synthetic ...
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Corundum is used as a gemstone, abrasive, refractory and much more. Red corundum is a ruby, blue is a sapphire, any other color is a fancy sapphire. Synthetic ...
TRAINS NTMs, the global nontariff measures database, provides comprehensive and systematic information on a broad range of policy instruments that can have an effect ...
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calender year index comm_name comm_code comm_wt in2005 in2006 in2007 in2008 in2009 in2010 in2011 in2012 in2013 in2014 in2015 all commodities i primary .
enables users to search for and extract data from across OECD''s many databases.
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