The so-called machinery industry, as long as it is related to machinery processing industries can be said to be machinery industry, this is divided into a broad sense of machinery industry and a narrow sense of machinery industry, at present, China's machinery industry can be said to be too backward, compared with the West, Most of them are mainly hand workshops, which are generally processing materials. Drawings and other drawings are foreign. However, in the coastal areas, although they are hand workshops, most of them have their own numerical control equipment, and the processing efficiency is relatively high. Mainly molds, And hardware.

Automatic lathes can automatically complete the multi-process processing of small and medium-sized workpieces according to certain procedures, can automatically load up and down, and repeatedly process a batch of the same workpieces, which is suitable for large quantities and large quantities of production. A special lathe is a lathe on a specific surface used to process a certain type of workpiece, such as a crankshaft lathe, a camshaft lathe, a wheelbarrow, a lathe, a roll lathe, and an ingot lathe.

(1) Imbalanced development, low overall product standards Although the products of individual enterprises have reached or are close to international advanced standards, on the whole, The precision of mould, roughness of cavity surface, production cycle, life span and other indicators are still quite different from those of foreign advanced standards.

Although some enterprises have undergone technological transformation in recent years, the level of technological equipment has been relatively advanced, and the equipment level of some three-capital enterprises has not fallen behind in foreign countries.