1, Conch (high-tech enterprise, new chemical building materials enterprise invested and controlled by China Anhui Conch Group, top ten plastic steel door brands, Wuhu Conch Profile Technology Co., Ltd.)
2. Shide (China well-known trademark, one of the largest chemical building materials production bases in the world, one of the top 500 Chinese enterprises and one of the top ten brands of plastic steel doors, Dalian Shide Group Co., Ltd.)
3. Beixin (founded in 1979, China well-known trademark, China famous brand, listed company, one of the largest new building materials industry groups in China, Beixin Group Building Materials Co., Ltd.)
4. Vicat (the first high-grade PVC-U plastic profile production base invested and built by Vicat Group, the top ten brands of plastic steel doors, Vicat Plastic (Shanghai) Co., Ltd.).
5. Kemeiling (Germany 1897, leading brand in international profile field, large multinational enterprise, top ten brands of plastic steel doors, Kemeiling (Tianjin) Polymer Profile Co., Ltd.)
6. New World Plastic Window (Anshan New World Plastic Window Building Materials Co., Ltd., one of the large manufacturers designated by the Ministry of Construction to produce UPVC plastic window profiles and plastic steel doors and windows)
7.LG Haojiaxi (top ten brands of plastic steel doors, famous brands, Korean-funded enterprises, mainly producing plastic steel doors and windows, synthetic floors, floor tiles and other products, Tianjin Lejin New Building Materials Co., Ltd.)
8. Lv Feng (China famous trademark, China famous brand product, Guangdong famous trademark, Guangdong famous brand product, Guangdong high-tech enterprise, Guangdong Lv Feng Aluminum Co., Ltd.)
9. Cai Zhong (Zhejiang Cai Zhong Investment Group Brand, National Key High-tech Enterprise, Top Ten Plastic Steel Door Brands, Industry Famous Brands, Zhejiang Zhongcai Profile Co., Ltd.)
10, Hongda Sunshine (China famous brand product, enterprise specializing in designing, producing and selling plastic steel doors and windows/doors and windows products, well-known brand in the industry, Beijing Times Hongda Doors and Windows Technology Co., Ltd.)