Chinese enterprises in the market, earnings from strategic policy attaches great importance to the market, the transition from the concept of philosophy in the first half of 2007, China's construction machinery industry sales growth of 46%, higher than the whole machinery industry growth rate of 32% . Full-year sales are expected to exceed 226 billion yuan excavator price increase will reach 40%, industry profits could increase 70% to 100%. At this stage, China's construction machinery market development is highly uneven revenue structure, compared with the United States, Japan and other countries with mature market overall sales and after-market service revenue ratio 0.64, our data is as high as 3.5, far exceeding the mature market level. With China's sustained economic development and a base ?? emerged a good momentum of rapid development, growing strong user demand for maintenance services, spare parts supply, rental and used equipment, such as after-market services we face huge space for development, engineering machinery enterprises The management strategy should attach great importance to having a lucrative market after this new field, and promptly seize the opportunity to focus on the management of innovation, looking for areas of the business advantages associated with rational planning and development path after the enterprise market the service, select right agents and their proxy mode, fight in the major cities and gradually formed a comprehensive service system construction machinery market after 1 size excavator arm, observed the excavator boom and arm have no cracks, welded at the scene, If cracks sized excavators prices, the claimant before doing relatively poor working conditions, severe damage to the machine. Even if such a machine to buy back domestic small excavators price list, is not good care. 2, there is no trace of the fuel tank to observe each bump, bump if there is, the claimant had suffered serious injuries, the cylinder will stop the oil spill, even if replaced with a new seal will continue to leak in a short time, so the purchase Used the machine, check the fuel tank is also very important. 3, check the four area, the first observation of the driving wheel, guide wheel, supporting wheels, support wheels and track wear serious. Second, check the chain is not original, the chain on top of the flag. If this flag and machine information corresponding to explain the chain is the original, if not consistent, to prove the chain is replaced, the machine may wear more serious, so be careful later, the last two travel motors also check whether during walking speed is the same, if a fast and slow it proves problematic, track and each round is a closer look at the work, support the car look lower row rollers wear serious, because the maintenance costs are very high chassis. 4, commonly known as the excavator engine "heart", so be sure to double-check when buying a used machine engine, when listening test engine has no noise, power is strong when working out whether the phenomenon of speed, but also can enter Watch the price of domestic excavator to the system, whether the displacement of the exhaust look bigger, if the engine displacement is too large to prove that longer length of time, the need for major repairs, in addition, to observe whether there is blue smoke when starting the engine to start After the work has not yet begun to imagine the smoke appeared, then prove there is oil burning engine problem. Excavators price list, Kerry and Heavy Industries (certified), Qinghai excavator price offered by 泰安嘉 and Heavy Machinery Co., Taian Jia and Heavy Machinery Co., Ltd. (www.tajhzg.com/) is Tai'an, 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. Heavy leader in Kerry and the staff warmly welcome all inquiries negotiations to create Kerry and heavy industry a better future.