Profile: Zhengzhou Sijihuo Refractory Co., Ltd specializes in pharmaceutical intermediates. Established in 1999 for servicing of various industrial furnaces, including boilers, rotary cement kiln, lime kiln,sodium silicate furnaces, glass kiln and aluminum melting furnace we mainly manufacture fire bricks, high alumina fire bricks, fireclay bricks, castable refractory cement, mortar, ramming mass, gunning mix and fused alumian oxide.