金隅集团：北京金隅通达耐火技术有限公司是公司全资子公司

Group 1 - The core viewpoint of the article is that Beijing Jinyu Tongda Refractory Technology Co., Ltd., a wholly-owned subsidiary of Jinyu Group, is recognized as one of the leading providers of green new-type refractory materials in China, with a comprehensive range of products and strong competitive capabilities [1] Group 2 - Jinyu Group emphasizes its subsidiary's extensive product variety and broad service areas, highlighting its competitive strength in the refractory materials sector [1]