(4) Light weight: accounts for only half of the glass, saving transportation, moving unloading, the cost of installing and supporting frame. (5) flame retardant: the national standard GB50222-95 confirmation, PC board for the flame level, ie B1 level. PC board's own ignition is 580 ℃, away from the fire self-extinguishing, does not produce toxic gases when burned, will not contribute to the spread of fire. (6) flexibility: according to design using cold-formed at the site, the installation arched, semi-circular roof and windows. Also bending. (7) insulation resistance: PC board noise effect is obvious, there is a better sound insulation than the same thickness of glass and acrylic plate, at the same thickness condition, PC board to improve sound insulation than glass 3-4DB. Highway noise barriers is the material of choice in the international arena. (8) Energy conservation: 夏天保 cold, winter insulation, PC board has more than ordinary glass and other plastic thermal conductivity (K value), thermal insulation effect of 7% -25% higher than the same glass, PC boards compartment heat up to 49%. So that heat loss is greatly reduced, and used to warm the equipment building is environmentally friendly materials.