Shandong Sanli Mattel Hydraulic Technology Co., Ltd. was established in 1998, located in Qingzhou, Shandong Province, China, is a professional manufacturer of construction machinery, agricultural machinery, truck transport vehicles with hydraulic parts, hydraulic parts set for the integration of R & D and technology-intensive manufacturing high-tech enterprises. Three of Mattel After years of development, has created a pragmatic, efficient design, development, production, sales force, the product of "the promise", "three of the United States and Thailand" brand hydraulic steering gear based, is the One hydraulic parts industry very competitive business. Shandong Sanli Mattel Qingzhou Hydraulic Technology Co., Ltd., formerly known as Connaught hydraulic steering gear plant in 2005 for light Hydraulic Technology Co., Ltd. Shandong Run full hydraulic steering products, equipment and technology for the overall mergers and acquisitions, the company's steering Production capacity has been rapidly. Before the merger, Hydraulic Technology Co., Ltd. Shandong Run the light of full hydraulic steering mainly for mountain work, Chang Lin, German workers, building workers and other domestic OEMs supporting more than 20, after the merger, the company has been on full hydraulic steering comprehensive technical improvements, which uses materials 20CrMnTi rotor vice patented technology, given the wear resistance of the rotor than vice ordinary carbon steel and ductile iron raise more than tripled, caused a sensation in the industry. Currently, "the promise" card full hydraulic steering has an annual 150,000 sets of production capacity, has won widespread praise in the international and domestic markets.