Metallurgy and plate industry, belongs to the heavy goods industry, the degree of automation in these industries is very high, because the manual can not intervene in the work, it is necessary to develop equipment to improve the efficiency of the production line and the safety of the packaged goods, these equipment includes, conveying equipment, winding equipment, palletization equipment, strapping equipment, composite packaging equipment, load shifting equipment and so on. Save labor at the same time, improve the packaging products have dust, moisture, corrosion and other effects, but also in the process of transportation and transfer to protect the goods themselves.