Type b is non-combustible glass fiber reinforced many non-combustible inorganic material, compounded by the scientific of a lightweight, high-strength, multi-purpose composites. Has many good features, surface gloss appearance, flame-retardant, light weight, high strength (tensile strength, compressive strength and high impact strength), water resistance, frost resistance, high temperature resistance, corrosion resistance after the small, aging resistance, moisture absorption, water does not Flex, no deformation, nontoxic, pollution-free, the small thermal conductivity thermal insulation, good processing properties