... resistant, heat-resistant cast steel: 1Cr18Ni91Cr18Ni9Ti1Cr18Ni10Nb1Cr18Ni12Mo21Cr25Ni131Cr20Ni14Si21Cr25Ni2 EPC has the following characteristics:1: casting size shape, accurate, ... casting, more than one box. Greatly increased the Yield of casting process and production efficiency.,.. ... burner liners, stable combustion ring, the primary air promotion, primary air and the ash powder feeding pipe elbow ...