The large-scale production of plastic steel profiles in China is one of the plastic steel doors used by Dalian Shide Group in 1995. The production capacity of plastic steel profiles in China has reached 5 million tons per year. But there is a serious overproduction and homogenization competition. At present, the largest production scale is Wuhu Conch Profile Co., Ltd., followed by Dalian Shide, Zhejiang Zhongcai, Hebei Baoding Baoshuo, Shandong Jinda Shuangpeng, and Shanxi Zhongde.
The current national standard for plastic steel profiles in China is GB/8814-2004. Companies that have obtained national exemptions are also produced with reference to this standard. Different from European and American countries, the types of profiles in China are single. Most of the current circulation on the market is 60mm flat door and window profiles and 80mm sliding door and window profiles. The above two specifications account for more than 80% of the total consumption.
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