With the development of the economy, hoisting machinery manufacturing industry has made great progress, the use of the field of crane is more and more, and a lot of space does not support the work of large cranes, so the working environment requires the emergence of crane products with special skills or structure.
Statistics show that the annual average growth rate of total output value, sales revenue and total profit of China's lifting machinery industry is more than 15%. By 2012, the total industrial output value of the lifting machinery industry has reached 267 billion yuan, the sales revenue has reached 256 billion yuan, and the total profit has reached 14.8 billion yuan.
The application will be more and more widespread.