Sinosteel Luoyang Institute of Refractories Research Co., Ltd. (LIRR) is a science and technology enterprise affiliated to Sinosteel Corporation, China. Sinosteel Corporation (abbreviated as Sinosteel) is a central enterprise under the administration of State-Owned Assets Supervision and Administration Commission of the State Council. We are a large multinational enterprise that integrates resource development, trade & logistics, engineering project and science and technology in providing ...