The series of insulating refractory bricks supplied by our ZS Refractories are assigned to the group of lightweight refractory bricks and are manufactured on the basis of naturally occurring lightweight raw materials, including high alumina light weight insulation brick, fire clay insulation brick, silica insulation brick, mullite insulation brick and so on. Having advantages of low thermal shock resistance, corrosion atmosphere resistance, high dimensional accuracy and low reheat shrinkage, our insulation bricks can greatly meet your demands of different shapes and types.