We are name of GUM SUNG Corproation who is doing a business in Korea and China. We have many sub-factories for our business. Our main business is as below; 1. Cleanroom products for LCD factory, semiconductor factory. 2. Military products: Rugged computer, other military products. 3. Health products: Dental products, health recover products, Digital health products. 4. Fiber optic products: Switch, collimator, CWDM, DWDM, Patch code, etc. . . If you need above products and related products. Please contact us anytime. We can supply the best products's quality and price. Thank you for your cooperation.