With industry data show that nearly 40 percent of construction machinery from the hydraulic system failure, about 15% of the fault from the engine. With intelligent EFI technology, can significantly improve the utilization of engine power, used a large excavator business, reducing hydraulic system power loss, so that the power system and the load better match the required power and reduce the work intensity of the engine and hydraulic components Used large excavators recovered, thereby improving the reliability of the equipment in long-term use of the whole. The weak sales of new machines used excavators new growth market demand, manufacturers are given the "TM" policy, the user will transfer old equipment to the agent, and its old machines as discount loans, purchase new equipment agents. This policy to solve the user to worry about disposal of old equipment, Henan large excavator used, and there is a certain value in the original subsidy, a firm commitment to the user to replace the second-hand equipment. Making the new machine sales have increased dramatically in the weak market conditions, become a new growth point of the new machine sales. Used large excavator market, Jin Hao used excavators, used a large excavator Tianjin Jin Hao from Shanghai Used Construction Machinery Co., Ltd .. 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.