Cots are widely used in industrial electrical and electronics, building materials, textiles, light industry, medical, machinery, transportation, plastics, rubber and other industries, into all areas of people's lives. Industrial Cots product chain can be divided into raw materials, monomers, intermediates, products, and products of four links. Because of the demand in Asia, especially the rapid growth of the world's major companies are optimistic about the Asian market, almost all industrial rubber roller monomer manufacturers have already or plan to build industrial rubber roller manufacturer in Asia, and primarily aimed at the Chinese market. 2005 China's industrial Cots monomer gap of about 330,000 tons, the domestic self-sufficiency rate of only 33%. To 2010, China's demand for industrial rubber roller products by 2004 of 385,000 tons / year to 100-120 million tons / year. Growth in demand mainly from the construction, electronics and daily chemical industry. Despite the rapid expansion of the monomers, but self-sufficiency rate is still low. At present, demand for industrial rubber roller at a rate of about 40% per year growth is expected to remain over the next three years of 25% growth rate. Industrial Cots monomer single set of industrial Cots large-scale foreign companies in general more than 5-10 tons / year, the largest single single set of 20 million tons / year, the country's single scale industrial Cots developed rapidly. The production capacity of a single set of Xin shares have also been more than 50,000 tons / year, also plans to build a monomer unit 100,000 tons / year in 2007. Xingxincailiao Spark chemical plant has built a 50,000 tons / year scale device, the second half of 2006 will be put 100,000 tons / year of monomer unit. Domestic and foreign technology gap is narrowing. Industrial Cots monomer production technology challenge is how to ensure the stability of product quality, and how to expand the scale of a single set of devices.