Recently, the Qingdao Municipal People's Government issued the "Decision on the 2008 Qingdao City Science and Technology Awards." Among them, the heavy-duty dump truck multi-stage hydraulic cylinder project of China National Heavy Duty Truck Group's special-purpose automobile company was awarded the second prize of Qingdao City Science and Technology Progress Award in 2008. The Qingzhan-EURIK (Europe) multi-stage cylinder project is a product of China National Heavy Duty Truck Group's special-purpose vehicle company that introduced European advanced technology design and production. Since its introduction into the market, it has been favored by users. It is reported that it has the following characteristics: 1, long-oriented: a unique long guide sleeve design, the longest in the same domestic cylinder; 2, high and low pressure sealing and taking into account: a unique high-pressure polyurethane Y-ring seal low pressure O-ring combination seal Structure, put an end to the possible leakage in the harsh environment of use; 3, soft and hard support: special soft guide and overall hard support structure, limit the ring using brass and cylinder tube after welding processing; 4, high-strength materials: The cylinder tube is made of high-strength seamless steel pipe, which has high precision and small movement clearance, improves the anti-flexing ability of the hydraulic cylinder, allows the maximum swing angle of 32° with a thin-walled design, light weight, small change of impact, smoother movement; Chromium plating treatment: The chrome-plated surface treatment is applied to all sports sections to prevent rust and wear, which increases the service life.
Germany Man Group was established in 1758. The three letters MAN consisted of the first letter of the company's former "Maschinenfabrik Augsburg Nurnberg", Headquartered in Munich, Germany, is a leading European engineering group with approximately 52,500 employees working in the five core areas of commercial vehicles, industrial services, printing systems, diesel engines and turbines in 120 countries in the world, providing comprehensive solutions, Annual sales of 16.5 billion euros (2011). Man Group has established joint ventures and other partnerships with local companies in India, Poland, Turkey and the United States. Is one of the world's top 500 group.
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