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　　At present, the overall level of domestic construction machinery cab and panel is relatively low compared with foreign and foreign-funded enterprises. The main differences of different manufacturers' products are in the material selection and manufacturing process. The cab with different structural characteristics has a significant impact on the coating process. At present, the manufacturing process of construction machinery cab can be roughly divided into the following two categories:

　　(1) Considering the production cost, hot rolled profiles and plates are the main products, with a relatively low level. The cab frame is made of hot-rolled profiles, the wall plate is made of hot-rolled plates, and some manufacturers use cold-rolled plates to make part of the frame. In this way, the cab is basically produced by the way of making construction machinery structural parts, which makes the pretreatment of cab painting more complex and not easy to handle thoroughly, the product anti-corrosion ability is relatively poor, and the appearance quality is relatively rough.

　　(2) Considering the product quality and appearance, the cold-rolled sheet bending and stamping forming are the main products with relatively high level. This technology is based on the concept of manufacturing automobile to design the cab and panel of construction machinery. It is the development direction of the cab products of construction machinery. At present, this kind of technology is generally used in sole proprietorship or joint venture.