There are also contradictions in this industry, such as a large number of production enterprises (nearly 400), small output, large capacity (2.8 million tons), small demand (1.2 million tons of profile sales nationwide in 2003), and the production capacity can not be brought into full play. There are less than 10 enterprises with an annual output of more than 20000 tons, uneven product quality levels, there is still a market for inferior products, and the quality and technical standards of the industry are too low, It is not conducive to technological progress, leading to the comeback of substitute aluminum. The upper market (30%) is occupied by foreign brands. The middle and low-grade market is unprofitable and highly competitive, and the final pattern has not yet been formed.
In terms of factory distribution, among the 392 profile manufacturers, 37% are in Southeast China, 12% in Shandong, 17% in Central China, 19% in Northeast China and 15% in Western China. In terms of production capacity, the national production capacity in 2003 was 2.8 million tons, including 9% in Shandong, 1% in Central China, 32% in Northeast China, 7% in Western China and 39% in Southeast China.