Boiler plate at the same time, most of the color steel plate production of many private enterprises to invest in domestic equipment, production capacity is small, but start fast, low investment, the products are mainly for building materials, decoration industry. In addition, foreign investment, Taiwan-funded have landed in the construction of Color Coating Line, but mostly concentrated in the coastal areas. Since 1999, with the color-coated market is strong, color coating steel production and consumption has entered a period of rapid growth. From 2000 to 2004, the production volume increasing by an average of 39.0%. Ended in 2005, the national color coating production capacity exceeds 800 million tons / year, there are a number of pre-painted units are under construction, the nationwide total capacity of more than 900 million tons / year.