, Hydraulic components hydraulic system is powered, hand digging machine, its role is the original motivation of the mechanical energy into fluid pressure energy, 120 second-hand digging machine, hydraulic system of pumps, which supply power to the entire hydraulic system. Check the hydraulic pump is also very important, when purchasing two mobile phones to touch their pump, the investigation has no hand shock feelings, and then view the pump have no cracks, is not there a serious oil spill case, the test to investigate hydraulic pump is not strong, second-hand excavator market, no noise in full swing, "TM", brought the company must be in the hands of the agents and the rapid growth of the number of second-hand equipment, and the high cost to recover a lot of used equipment has become a lot of company Another hands of the "hot potato." About these "hot potato", approach companies and agents handling mainly in the following three types: the original machine changed hands to sell, lease, and then make two mobile phones, while the current opinion, because to recover the cost of continued high prices, regardless of which method is effective They are hardly ideal. Second-hand excavator used excavator market _ _ Kim Ho Jin Hao used excavators provided by Shanghai Used Construction Machinery Co. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) in mining machinery in the field devoted boundless enthusiasm and passion, Jin Hao used excavators has been customer-centric, for customers to create the concept of value, quality, service to win the market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: Mr. Chairman.