Significant differences between the crane and other general machine is huge, combination work movable metal structure and multi-agency. Characterized by intermittent rotation job, lifting loads inhomogeneity, inconsistency agencies motion cycle, ranging from the time of the institution of the load, the people involved with the job, etc., but also increased the complexity of the crane operation, security risks more great danger range. Accident-prone points, lifting equipment relocation serious consequences of the accident, which is particularly important to the safety of the crane. Special lifting equipment industry development trends from the current domestic market, lifting equipment maintenance lifting equipment, large-scale lifting devices exist some shortcomings: large domestic lifting equipment rental markets are underdeveloped, especially small professional large-scale lifting equipment company ; lack of coordination within the lifting equipment industry workshop lifting equipment, industry fragmentation. With China's economic development, the demand for special lifting equipment will increase. Market gets bigger, the competition between the industry will intensify, especially the fittest among enterprises, merger integration, will be the development trend of the lifting equipment industry. China's large special lifting equipment industry will enter a virtuous development track. Maintenance of lifting equipment, the quality and quantity of Shandong Lu PICC (certified), Zhangqiu lifting equipment provided by Shandong Lu mechanical equipment installation Limited. Shandong Lu Machinery Installation Co., Ltd. (www.sdlzqz.com) Shandong Jinan, industrial maintenance, installation of leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lifting leadership in Shandong Lu staff warmly welcome all inquiries negotiations to create Shandong Lu lifting a better future.