Group 1 - The State Intellectual Property Office of China has granted a patent to Chengde Jianlong Special Steel Co., Ltd. for a technology related to "a nitrogen alloy for top heads and its preparation method," with the announcement number CN116590617B and application date of May 2023 [1] - Chengde Jianlong Special Steel Co., Ltd. was established in 2001 and is located in Chengde City, primarily engaged in black metal smelting and rolling processing. The company has a registered capital of 1.5 billion RMB [1] - The company has made investments in 18 enterprises, participated in 5,000 bidding projects, holds 3 trademark registrations, and has 520 patent records, along with 67 administrative licenses [1] Group 2 - Hainan Longxiang Original Technology Co., Ltd. was established in 2020 and is located in a county-level administrative region, primarily engaged in internet and related services. The company has a registered capital of 100 million RMB [1] - Hainan Longxiang Original Technology Co., Ltd. has invested in 1 enterprise, participated in 1 bidding project, holds 83 patent records, and has 1 administrative license [1]
承德建龙取得顶头用渗氮合金及其制备方法专利
Sou Hu Cai Jing·2026-02-06 06:21