Tuopu Group(SH:601689) Jin Rong Jie·2025-08-23 03:25Core Viewpoint - Ningbo Topu Chassis System Co., Ltd. has obtained a patent for an "air spring piston," indicating its innovation in the automotive manufacturing sector [1] Company Overview - Ningbo Topu Chassis System Co., Ltd. was established in 2020 and is located in Ningbo City, primarily engaged in the automotive manufacturing industry [1] - The company has a registered capital of 600 million RMB [1] - According to data from Tianyancha, the company has participated in 7 bidding projects and holds 53 patents, along with 4 administrative licenses [1] Patent Details - The newly granted patent (CN223257397U) was applied for on November 2024 and describes an air spring piston that includes a piston body and an electromagnetic valve [1] - The piston body consists of an upper piston and a lower piston, with specific design features aimed at enhancing functionality, such as a downward extending annular extension and a vent hole in the lower piston [1] - The design also incorporates a supporting ring made of metal, which is fixed within the lower piston, indicating a focus on durability and performance [1]