1650C wowrking temperature. SiC ceramic kiln furniture for refractory, alumina ... shuttle kiln tunnel kilns. by RSiC, NSIC, RBSIC ceramic, working temp could be 1380-1650C celsius.including: beam, support, setter plates, burner nozzles, rollers, crucibles, tubes special shaped parts. Tangshan sndou sic ceramic factory products formed by slip casting way.reliable quality with good price.