1,no polution 2,good effect 3,reduce the cost 4,operate easily 5,spread better in high temperature, One, physicochemical index:GradeCr2O3SiO2MgOAl2O3Fe2O3Refractoriness(°C)Moisture(%)RemarksSiliceousSYLS1>=95.012.5~3.5<=0.1>=1670<=0.31ChromeGYLS-A>36.0<812~16<25<13.3>1720<=0.5Domestic chromiteGYLS-B>42.9<615~19<17<4.2>1780<=0.5Imports of chrome ore Two, use and performance characteristics:1, used ...