Стальной сейф

Material: Paper veneer gluing fire-proof plasterboard Mixed with additive and reinforced fibre. Stick one wrap of paper on top and back. Advantages: good warm-keeping, heat-insulation, sound insulation. Porous. The coefficient of heat conduction is 0.16W/ (M.K), comparing with gray sand brick of (1.1W/ (M.K)). Its heat-insulation has more prominent advantage, and its unique cavity structure, improves sound-heat insulation greatly. And fire-proof gypsum core wont fire, the body will absorb a large amount of heat during firing and releasing water compound, delay ambient temperature rises, so, fire-proof plasterboard has perfect fireproofing to insulate against heat performance. Being inspected by national fire- proof inspection center, the peak of anti-fire can be 6 hours.