Data show that in 2011 January - May domestic brand market share further increased to 37%. China topped Sany excavator production capacity has reached annual sales of tens of thousands of units of the scale, Hangzhou used excavators, while the top four industry production capacity has reached more than 4,000 units / year level. Other business capacity larger speed is quite strong. The next stage, the purchase of second-hand excavators, domestic brand excavator on imported machines and two mobile phone market share of squeeze will probably become the norm. Viscosity index (VI) which reflects a more direct indicator of the oil viscosity with temperature change of nature (ie viscosity-temperature characteristics of the oil), high viscosity index oil, showing the kind of oil viscosity with temperature change to a lesser extent; on the contrary, is large. Viscosity index known foreign manufacturers (such as Mobil, Shell, etc.) hydraulic oils are VI≥110, about viscosity index VI domestic advanced anti-wear hydraulic oil = 95. The foreign production of high viscosity index hydraulic oil (HV) and multigrade engine oil viscosity index are VI> 140. This is for the use of large-scale imports of hydraulic excavators and the use of domestic hydraulic oil (or use engine oil as hydraulic oil) users to pay special attention. Reduce the viscosity index oil will adapt to the ambient temperature range narrow, used excavators flatbed trailer, if not non-use, the oil should Manufacturers relevant information on the use of oil shall make the appropriate adjustments, if necessary, the device should be changed Related setting (such as extreme temperature, etc.). Beijing used excavators | Kim Ho used excavators | used excavators bought by Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Beijing used excavators | Kim Ho used excavators | used excavators to buy a second-hand Construction Machinery Co., Ltd. Shanghai Jin Hao (www.jinhaosh.cn) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Mr. Chairman.