Relevant experts believe that China's accession to the WTO, along with a wave of world economic integration, global manufacturing to accelerate the transfer to the mainland China is the general trend, China will gradually develop into a world-class manufacturing base. Experts predict that the obvious advantages of Guangdong, especially the Pearl River Delta region will become a world within a decade, ball valve production centers. During the period of 15th Decades, the general trend of the pressure reducing valve market smooth and progressive. At present, the domestic market for high-grade die in great demand, but requires that the domestic mold quality, delivery and other aspects to meet the needs of users. Moreover, the appliance, automotive, plastics industry, the mold needs. International markets: In recent years, industrial countries, labor costs increase, the positive developing countries, especially Southeast Asian countries transfer. Its domestic production of high precision molds, manual labor input, the large amount of mold to rely on imports. Therefore, the middle and low international market potential of the butterfly valve is very large. As long as the quality of domestic mold can be improved, the delivery time to ensure that the mold for export prospects are very optimistic. In addition, the international market is also a great demand on the shelf and mold standard parts. At present, China only on the frame in a number of a small amount of exports. Relevant experts believe that China's accession to the WTO, along with a wave of world economic integration, global manufacturing to accelerate the transfer to the mainland China is the general trend, China will gradually develop into a world-class manufacturing base. Experts predict that the obvious advantages of Guangdong, especially the Pearl River Delta region will become a world within a decade, ball valve production centers. At the same time, due to the recent years, China's annual imports of nearly $ 1 billion molds, precision, large-scale, complex, long-life mold the majority, so starting from the perspective of reducing imports of such high-grade mold in the market, the proportion of the sub-quota will also be gradually increased .