The Light Insulating Brick can be produced by us in accordance with ASTM Standard. It is widely used for insulating layer and lining of industrial kilns & furnaces. For example, our light bricks with density 0 5 g/cm3 (ASTM23) represent the leading level in China, and regularly export to USA, Italy & Russia etc We provide JM23, JM26, JM28, Insulating Castables.