Sung Gwang Co., Ltd. Leading Future ChangesSung Gwang Co., Ltd. has been making great efforts for the past 50 years to produce more innovative and safer windows and doors.As a result of such efforts, we are now supplying our environment-friendly windows and doors under the government procurement agreements and multiple award schedules.Recently, we have launches a new product, WINGUARD, as a result of continued research and development, In the future, we also promise to supply innovative products through continued research and development without being complacent.Sung Gwang Co., Ltd. Assisting Our NeighborsSung Gwang Co., Ltd. helps enterprises and individuals to develop and grow by providing assistance to them rather than putting our profits before that of our customers.