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UNG Refractory (Shanxi) Plant was founded in 2003 Products :Rotory kilin bauxite ,Shaft Kilin Bauxite, Round Kilin Bauxite UNG Refractory(Henan)Plant was founded in 2005 Products fused/sintered Calcum Aluminate UNG Carbon(Ningxia) Plant was founded in 2006 Products:Gas Calcined Anthracite, Eletrical Calcined Anthracite. UNG Carbon(Tianjin) Plant was founded in 2012 Products:Calcined Petroleum coke, Graphitized Petroleum coke UNG Trading(Shanxi) and UNG Metallurgy(Hongkong)was founded in 2013 Start marketing our products to the oversea market.In same time, we extend our products range to improve our service to our clients. UNG Ceramic Sand(Shanxi)Plant was founded in 2019 Products:Fused Ceramic sand For foundry