Although the rubber and plastic seals are small, their role makes it a basic component and accessory in the major industries of national economy, such as national defense, chemical industry, petroleum, coal, transportation and machinery manufacturing, and occupies a very important position in the development of national economy. In recent years, with the rapid economic growth, rubber and plastic seals manufacturing industry has maintained double-digit growth. Data show that in 2011, the size of China's rubber and plastic seals manufacturing industry (the above enterprises (according to the National Bureau of Statistics statistical caliber, sales revenue of more than 20 million yuan) to achieve nearly tens of billions of industrial output, an increase of more than 20%. At present, China's rubber and plastic seals manufacturing industry Scale (annual revenue of 20 million yuan) more than 150 enterprises, the domestic rubber sealing industry in general presents a small enterprise scale, low technical level of the development situation.
From the enterprise economic type, private, three enterprises accounted for more than 95%, is the main economic type of the industry, at the same time, enterprises are basically concentrated in east China, from the number of enterprises, sales revenue and asset size, east China has occupied a considerable share, the market concentration is high.