1 Pan Pan (China famous trademark, China famous brand, high-tech enterprise, joint-stock enterprise led by the development and manufacture of new building materials)? 2 Tata (Top Ten Brands of China Door Industry Co., Ltd., Top 30 Wooden Doors in China and China Wood Industry Co., Ltd.)? Maxim (a famous brand in China, Maxim Group was founded in 1989, and now it has grown into a door industry, with investment covering auto parts and new environmental protection)? Buyang (a well-known trademark in China, a famous brand product in China, a patent demonstration enterprise in Zhejiang Province, and the largest production base and outlet of security doors in China)? 50,000 Jiayuan (awarded the title of "Luban Award Supporting Enterprise" for construction projects in 2005, and the title of "Shandong Famous Brand" and "Shandong Famous Brand")? 6 Jinfeng (adhere to the quality concept that quality is the basis of service, strictly control the quality of raw materials, and prevent fake and shoddy products from entering every production link)? 7 Meng Tian (founded in 1989, one of the top ten brands of solid wooden doors and one of the top 30 wooden doors in China, a well-known enterprise dedicated to the research, development, production and sales of wood composite doors)? He Hua (a famous brand and trademark in Heilongjiang Province, one of the leading furniture/wooden door manufacturing enterprises in China, and a leading forestry enterprise in Heilongjiang Province)? 9 Guanniu (an independent and innovative enterprise integrating the development, manufacture, distribution and after-sales of professional solid wooden doors, one of the top 30 wooden door enterprises in China and a well-known product)? 10 Huihao (Dongguan Huihao Wooden Door Co., Ltd., a famous brand in China and Guangdong Province, is committed to building luxury high-end wooden doors).