Hello, I am very happy to answer your questions. Yajie Hardware (well-known trademark in China, Guangdong Yajie Hardware Co., Ltd.)? 2 Huitailong Hardware (famous brand, Huitailong Decoration Materials Co., Ltd.)? 3 Dinggu Hardware (well-known brand, Zhongshan Dinggu Metal Products Co., Ltd.)? 4 Modern Hardware (well-known brand, Guangzhou Modern Hardware Products Co., Ltd.)? 5 Tiannu Hardware (well-known brand, Guangdong)? 6 Guli (well-known brand) Brand)? 7 Ikov (Germany in 1980, a German company specializing in the production of door control hardware)? 8GMT Dongfeng Hardware (an investment company of Taiwan East Railway Enterprise Co., Ltd.)? 9 Sligao Hardware (Sligao (Nanhai) Technology Building Materials Co., Ltd.)? 10 Door Lock Industry (well-known brands?) hope they can help you, thank you.