Crane safety knowledge: Front Large lifting operations should be carefully survey the scene, according to the engineering characteristics and operating environment preparation of special programs, and technical director for approval by the enterprise, which includes: the environment and measures to project overview and construction technology field, lifting mechanical selection basis, gin pole design and calculation of required anchor design, design selection letter rope rigging, endurance and road map and lifting components stacked in place during the various protective measures. Crane risk control: When lifting job site blurred, 20 t crane, lifting operations is prohibited, used 20 tons crane price, lifting prevent the occurrence of injuries. Shall not exceed the rated load crane operations, to prevent vehicle overturning, used 20 tons crane much money, personal injury accident. When lifting heavy objects, the first object to be lifted off the ground 100mm inspection crane brakes, safety devices are sensitive and effective under normal circumstances confirmation before continuing operation. Tadano crane 20 t much money, Yongchang Machinery (certified), 20-ton crane provided by the Henan Yongchang Engineering Machinery Co., Henan Yongchang Engineering Machinery Co., Ltd. (www.tadanocrane.net) Henan Anyang, engineering, construction cranes leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Yongchang machinery leadership with the staff warmly welcome all inquiries negotiations to create a better future Yongchang machinery.