CFHI(SH:601106) Sou Hu Cai Jing·2026-02-25 04:00Group 1 - The State Intellectual Property Office of China has granted a patent for a method to retrofit existing rolling production lines with auxiliary rolling machines to Dalian Engineering Technology Co., Ltd. and China First Heavy Industries [1] - Dalian Engineering Technology Co., Ltd. was established in 1995, located in Dalian, with a registered capital of 350 million RMB, and has participated in 3,619 bidding projects and holds 1,143 patents [1] - China First Heavy Industries Co., Ltd. was founded in 2008, located in Qiqihar, with a registered capital of approximately 6.85778 billion RMB, and has participated in 3,988 bidding projects and holds 2,260 patents [1] Group 2 - Dalian Engineering Technology Co., Ltd. has made investments in 3 companies and holds 17 administrative licenses [1] - China First Heavy Industries Co., Ltd. has invested in 33 companies and holds 345 administrative licenses [1] - The patent granted is identified by the announcement number CN117244943B, with an application date of November 2023 [1]