青龙管业：与中国中材国际工程股份有限公司签订《战略合作框架协议》

Group 1 - Qinglong Pipe Industry announced a strategic cooperation framework agreement with China National Materials International Engineering Co., Ltd. on September 23 [1] - The cooperation aims to leverage complementary advantages, mutual benefits, open collaboration, and joint development [1] - The focus will be on expanding cooperation in international operations and overseas capacity layout to achieve win-win results [1]