Ll sash (Leading Life Sash) Windows and Doors have played great roles in Housing. Generally It has been used for coming in and out. It features Insulation, Soundproof, Watertight, High Density, etc. High quality Plastic windows and doors, Llsashe is never changed in high or low temperature, durability, Insulation, Soundproof, Density, etc. and it features assembling and easy construction. Llsashe devotes itself to the better surrounding, beautiful design, excellent quality products, windows (which is developed first to meet SHC method). And it has supplied housing, apartment, Condo, Hotel, with products.