Zibo yumin refractor material co., 1td is leading enterprise under a Shandong yumin group, it is well-known throughout the country in developing and producing refractoies for glass furnace. It is a high and new-tech enterprise of shandong with powerful and outstanding characteristic strength in the nonmetallic material field of the inorganic. He has already developed into pluralism and comprehensive largr-scale enterprise which the integrative of development, production, sale, furnace designing, installation and complete sets of service through the diligent struggle for manr years .It is the importint glass furnace of our country that uses one of the production bases of refractory material. Our company is devoted to the research,develop and produce of the refractory material for a long time. There are many domestic most advanced kiln production lines of high temperature tunnel kiln and shuttle kiln of the ultra-temperature and various kinds of comprehensive larg and middle scale epuipment .