... service temperature 3.low thermal conductivity. Introduction: Alumina bubble refractory brick, light weight and energy saving, has good ... layer.Application:Petrochemical and chemical industry--carbon black furnace, gasifier, ethylene pyrolyzer, one-stage converter, hydrogen ... kiln, flagon kiln, roller kiln, shuttle kiln, bell-type furnace, net-bell tunnel, etc;Index: ITEMLG-98Al2O3 ≥wt% ...