Company Overview - Chongqing Weichai Engine Co., Ltd. was established in 1999 and is located in Chongqing, primarily engaged in the manufacturing of specialized equipment with a registered capital of 120 million RMB [1] - Weichai Heavy Machinery Co., Ltd. was founded in 1993 and is based in Weifang, focusing on the manufacturing of general equipment with a registered capital of approximately 331.32 million RMB [1] Patent Information - Chongqing Weichai Engine Co., Ltd. and Weichai Heavy Machinery Co., Ltd. have obtained a patent titled "A Monitoring Method and Device for Engine Timing, Electronic Equipment, and Storage Medium," with the authorization announcement number CN115977800B, applied for on January 2023 [1] Investment and Business Activities - Chongqing Weichai Engine Co., Ltd. has made external investments in one company, participated in 88 bidding projects, and holds 402 patent records along with 66 administrative licenses [1] - Weichai Heavy Machinery Co., Ltd. has invested in nine companies, engaged in 587 bidding projects, and possesses 940 patent records along with 38 administrative licenses [1]