Although the German construction machinery does not occupy the position of the world, but behind the United States, Japan, but its wide range of products, a high degree of market segmentation, coupled with its nearly 80% share of exports, "Made in Germany" fame Overseas, in the minds of consumers around the world has surpassed the United States and Japan's position. So the magic come from? Why German industrial technology can highly regarded global authority? How is it done eternity? We work together as you interpret: emphasis on R & D investment for the development of power industry in Germany attaches great importance to R & D investment, if not sustained, a large number of research and development funds, it is difficult to place in the world today. Thus, the rapid growth of business-oriented industrial R & D investment has become one of the most important factors to keep Germany competitive industrial technology, even after the financial crisis hit in Germany R & D investment has also been rapid recovery, domestic second-hand excavator price, beyond other EU countries. As we all know, Germany has many large enterprises worldwide, but the construction machinery industry is more of a small number of family-owned small and medium enterprises, large corporate presence as a partner, which determines that they must have a high level of specialization, can long-term partner of large enterprises to create high-quality products for the German industry. They must continue to invest in R & D funding, continue to receive the latest technology to ensure the long-term cooperation. Mechanized construction companies, engineering machinery technical condition is good or not is a direct factor in business whether normal production. On hydraulic transmission engineering machinery, the normal operation of the hydraulic system is a major sign of their good technical condition. Qualified hydraulic oil is to protect the reliable operation of the hydraulic system, proper maintenance is essential for reliable operation of the hydraulic system. Therefore, they practice according to Yellowstone excavators, would maintain the general operating environment of a hydraulic system for rough discussed. Select the appropriate hydraulic oil hydraulic oil in the hydraulic system plays a transmit pressure, lubrication, cooling, sealing effect, buy used excavators, hydraulic oil inappropriate choice of hydraulic system failures and durability of early decline. When selecting hydraulic oil grade should be random "manual" in the provisions of the special circumstances need to substitute oil, we should seek the same performance as its original performance grades. Different brands of hydraulic oil can not be mixed use, to prevent hydraulic oil to produce a chemical reaction, the performance changes. Dark brown, white, smelly oil hydraulic oil is bad, you can not use. Buying second-hand excavator excavator _ _ Yellowstone Kerry and Heavy (View) by 泰安嘉 and Heavy Machinery Co.,泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) strong, credible, in Tai'an, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kerry and heavy and you hand in hand into the brilliant, for a better future!