Place of Origin : Esfahan,Iran

Investment powder for 18K and 22K gold. GEM™ Gold Cast has a reputation to be the best investment powder, producing castings of the highest quality. GEM™ Gold Cast is manufactured using only the finest grades of raw materials. It can cast precious alloys up to 1400°C including Palladium White Gold. It can withstand high temperature and gives a very fine surface finish.

http://www.landongroup.co.uk/en/products/investment-powders/gem-gold-cast.html