On the one hand in the stimulation of national policy, the domestic construction machinery market threshold gradually, the whole construction machinery industry structure contention also by the economic and durable products continuously adjusted toward intelligent environmental protection. Major construction machinery enterprises have also increased investment in technical innovation and new efforts to promote, used digging machine site, construction machinery manufacturers agreed action also means that the industry transition to a green, smart, "energy saving, environmental protection" has infiltrated the development of the industry in. On the other hand, the domestic users of the mining machinery quality requirements are high, especially for product efficiency, fuel consumption, maintenance, salvage and other indicators are very concerned about. Doosan Infracore related to this high level stressed excavator industry generally use EFI engine direct injection engine to replace the original purpose is not simply to improve fuel efficiency to reduce fuel consumption so simple, why the industry recognition EFI engine is the industry's future, its more central significance lies around EFI technology has a range of intelligent control technology to be applied, Jiangxi used digging machine, only the intelligent control of fuel injection is the key to cost reduction achieved. It is understood that the sale of second-hand digging machines, construction machinery and construction machinery after market products, continued sales market back, after that is involved in sales of construction machinery market, second-hand digging machine prices to sell construction machinery products for the carrier trade in services. Construction machinery industry generally believe that after-market components: service, parts, leasing, two mobile phones, remanufacturing of five parts. With respect to the foreign mature market after China's construction machinery market development efforts after a serious shortage, but in the past two years, the domestic construction machinery enterprises under the hard work in the market after the development, particularly for large construction machinery enterprises, results achieved in this regard significant. Used excavator website, Kim Ho used excavators (certified), Jiangxi used digging machine provided by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) is the Shanghai Minhang District, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Kim Ho used excavators in leadership with the staff warmly welcome all inquiries negotiations to create jinhao used excavators better future.