二十冶取得空分冷箱调整固定方法专利

Group 1 - The State Intellectual Property Office of China has granted a patent for a method of adjusting fixed air separation cold boxes to Shanghai Twenty-First Metallurgical Construction Co., Ltd. and China Twenty-First Metallurgical Group Co., Ltd. The patent authorization announcement number is CN117702806B, with an application date of November 2023 [1] - Shanghai Twenty-First Metallurgical Construction Co., Ltd. was established in 2003 and is primarily engaged in civil engineering construction. The company has a registered capital of 630 million RMB and has made investments in 7 enterprises, participated in 5,000 bidding projects, holds 8 trademark registrations, and has 2,088 patents along with 145 administrative licenses [1] - China Twenty-First Metallurgical Group Co., Ltd. was founded in 2001 and focuses on professional technical services. The company has a registered capital of 2.05 billion RMB, has invested in 105 enterprises, participated in 5,000 bidding projects, holds 5,000 patents, and has 1,049 administrative licenses [1]