The key of the metal products industry contains 9 major differentiated industries. In 2006, the total number of companies in the national metal products industry reached 14,828. Among them, the total number of companies in the metal products industry reached 4,199, capturing 28.31%of all the metal products industry, and specifications in accordance with the "Guoping Economic Industry Classification". It ranks first in the segmented industries; the slightly inferior engineering construction, safe use of metal products manufacturing, accounting for 13.33%of all metal products industry, stainless steel plates and near -day metal products manufacturing and alloy special tool manufacturing industries. There are 32 distances, and the processing of precision hardware parts accounted for 12.44%and 12.22%of the all metal products industry. The total number of companies in enamel products manufacturing is at least 198, and the processing of precision hardware parts only accounts for 1.34%of all industries. National metal metal. The market size of the product industry reached 812.352 billion yuan, of which structured metal products accounted for 29%of the market size, 2006. Slightly higher than the total number of companies, enamel products manufacturing only accounts for 1.09%of all metal products industries.

     The profitability of the national metal products industry market has gradually increased, and the annual growth rate is unremittingly above 14%, and the market size is often expanded. In 2006, the industry's sales profit reached 812.352 billion yuan, with an annual growth rate of 29.39%, in the past seven years. The market size expanded by 2.62 times compared to 2000. Domestic economic development and industrial sudden advances, many hardware parts have abundant requirements, and the market size expands. The sales rate of the national metal products industry guarantees more than 96%of the industrial indicators, nearly seven years. The production and marketing of precision hardware parts processing plants is valid.