... , primarily export to SPAIN, USA, ITALY, TURKEY,AFRICA etc.JM insulating brick, using high pure mullite as raw material, is ... according to different type and then sintering in high temperature. JM insulating brick is the new energy saving material for insulation ... 1Thermal shock resistance (cycles)1100oC Water cooling3030303030Thermal conductivity (W/m.k)400oC0.140.270.320.410.49600oC0.160.290.340.430 ...