Sun Castle Global Precision Technology Co., Ltd. (SCG) was established in 1981 and has been recognized as a well-known hardware manufacturer in Taiwan. Over the years, SCG diversified its business interests by investing in different applications of surface treatment. In 2004, with its specialty and know-how, Sun Castle applied and integrated its expertise in manufacturing electronic door locks and built self-owned brand scg. So far, SCG has successfully integrated today’s modern technology with traditional artistry and metalworking in digital code input door locks and RFID card door locks. With our insistence of Taiwan Excellence and Quality, SCG has become a leading provider of digital door locks throughout the world. Besides, we strive to catch up with new technology and trends in security industry and develop new security products and solutions every year to cater to customers’ needs. SCG are dedicated to being a solution provider and bring a better life to all human beings.