Changhong fireproof material limited company was established in 1981. The company incorporates manufacturing, marketing, researching and developing into a whole. The company area of 26,000 square meters. The main products includes Mag-C bricks and monolithic refractory. The main equipment of the company are seven making brick machines(three 1600t,two 1000t,two 800t).three automatic shatter producing lines ,two long infrared dry kiln line and two bulk magnesium material producing line. one Center Laboratory- labouratory ,one modern office block. The yield of magnesium graphite brick is 40,000 tons and bricks for slag zone and side wall, ramming mixes for bottom alkalescence monolithic refractory material is 150,000 tons every year.