金隅集团：全资子公司北京通达耐火技术有限公司为四大发射基地供应耐火材料

Group 1 - The core point of the article is that Jingu Group's wholly-owned subsidiary, Beijing Tongda Refractory Technology Co., Ltd., supplies refractory materials to four major launch bases [1] - The company provided this information in response to investor inquiries on an interactive platform [1] - Further details can be found in the company's announcement regarding abnormal fluctuations in A-share stock [1]