Qingzhou Haorun Machinery Co., Ltd. is located in Qingzhou City, Shandong Province, a historical and cultural city and one of the ancient nine provinces. It is situated in the central part of the Shandong Peninsula, with the Jiaoji Railway, Yanglin Railway, Jiqing Expressway, and Changshen Expressway intersecting and connecting within Qingzhou. The 309 National Highway, 227 Provincial Highway, and other highways pass through the area, making it economically developed, with abundant tourism resources and convenient transportation. The company was founded in 1998 and covers an area of over 20000 square meters. It currently has 187 employees, including more than 30 engineering and technical personnel and technicians. It is an industrial enterprise that produces hydraulic valves for engineering and agricultural machinery, mainly including tractor multi way valves, tractor hydraulic valves, threaded plug-in valves, and engineering machinery hydraulic valves. The company has rich experience in mechanical processing and hydraulic component manufacturing, and has long cooperated with industry research institutes, manufacturers and other engineering and technical personnel. It combines industry, academia and research, digests and absorbs technology, continuously innovates and researches independently, and carefully manufactures three major categories of hydraulic valve products under the 'Haorun' brand: engineering machinery hydraulic valves, including ZDF series integral multi way valves, DL series split multi way valves, XDF type pilot control valves, 2WF type two position distribution valves and other hydraulic valve products; Tractor hydraulic valves: including DF series segmented multi way valve, FP-L15E distributor, ZD-L12 series integral multi way valve