富临精工申请具有主阀常开口的阻尼控制电磁阀专利，使电磁阀入口油压处于一较低水平

Group 1 - The company, Fulin Precision Engineering Co., Ltd., has applied for a patent for a "damping control solenoid valve with a normally open main valve" [1] - The patent application was filed on April 2025, and the publication number is CN120140506A [1] - The solenoid valve design features a structure that allows for lower oil pressure at the inlet, enhancing its hydraulic characteristics [1] Group 2 - Fulin Precision Engineering Co., Ltd. was established in 1997 and is located in Mianyang, primarily engaged in the automotive manufacturing industry [2] - The company has a registered capital of 1.220861316 billion RMB [2] - Fulin has invested in 14 companies and participated in 84 bidding projects, holding 461 patents and 18 trademark registrations [2]