20 Since the late 1990s the demand of the PC board to electronic / electrical, optical textile with sand from the original pipe, construction, automotive and other areas, demand sharply added. 1999 domestic consumption PC board PC board fee of about 14 million tons, while consumption increased in 2003 to reach 380,000 tons, about 28% of the annual promotion rate, far higher than even the growth rate of the national economy and other general engineering plastic promotional rate. Because domestic production is very small, our primary use of PC boards are imported from abroad. 1999-2003 net imports of PC board were 138,000 tons, 235,000 tons, 212,000 tons, 342,000 tons, 381,000 tons, and have not yet include a considerable number of PC boards come in smuggling, nor thinking imports products and scrap, so the practice of domestic import and consumption data than the above calculation should override many of the customs, border and abroad PC board agreed that the Chinese market has great potential of its relatively unchanged. The current global PC board uses have high function, specialization tend to carry out, in view of the PC board production and market demand both appear to carry out rapid scenes, especially the domestic set-up multiple sets of plans to establish, together with the automotive industry to carry out rapid pull in future years, China's PC industry has entered a new stage of development, PC boards throughout the life and production of the entire field of which the most widely used are as follows: construction, health care, electrical and electronics, automotive and sports equipment. These aspects are seriously affecting our lives. So it became essential to the development of our society, the kind of raw material. Based on current developments, an important position in the PC board industry in the future can not be ignored.