Window glass is always used in commercial building glass, residential glass or automobiles. Window types can be sliding aluminum window, casement window, fixed window and so on. The glass can be toughened safety glass, laminated safety glass, double or triple glazing, curved shape tempered safey glass etc. It always use modern energy saving glass, like low e or reflective glass to get green building effect. Glass reflective colors like green, blue, neutral, golden, purple are available.