Henan Daye Metallurgy Casting Material Co., Ltd., with the factory founded in 2006, is located in Xinyang City of China, which is Asia’s largest perlite research & production base. It’s a professional manufacturer engaged in the research, development, production, sale and service of slag remover, carbon additive, riser insulation agent, and perlite series products. As a industry frontrunner specializing in metallurgical material slag remover production in China, our product “Daye Brand” R-2?R-3