1,Kiln furniture refractory batts 2,Our cordierite-mullite batts can resist 1320 degree celsius working temperature. Our cordierite-mullite batts can resist 1320°C working temperature and have good heat shock stabillity. The cordierite-mullite batts are apply to the roller kiln, tunnel kiln and shuttle kiln for producing artistic ceramics, daily ceramics, sanitary ware , special ceramics and ...