摘要
SinoSteel Luoyang Institute of Refractories Research; Sinosteel Luoyang Refractory ( Group ) Co. , Ltd.;Jinlong Refractories Group;Shandong Jiahua Refractory Group Co. , Ltd;Zhengzhou Jinghua Refractory Industrial Co., Ltd;
SinoSteel Luoyang Institute of Refractories Research; Sinosteel Luoyang Refractory ( Group ) Co. , Ltd.;Jinlong Refractories Group;Shandong Jiahua Refractory Group Co. , Ltd;Zhengzhou Jinghua Refractory Industrial Co., Ltd;