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Technical drawing of meterial     Feature and advantages Composition:  Cat Tuong sound and heat insulation material is made of typical polyethylene bubble wrap covered by one or two metallised layers. Their light silver faces reflect all radiant heat while the bubble wrap prevents heat conduction and supports fast heat emittance. Feature and advantages: - High heat insulation capacity (blocking 95-97% radiant heat) enables big difference of heat between inner and outer spaces of the offices, buildings, etc. preventing heat absorption in summer and heat emittance in winter. - Differentiating 30-40% of temperatures - Decreasing 60-70% of sound volume - Ensuring roof durability, human health and environmental friendliness, and mould growth and vapor condensing prevention - Ensuring easy installation and high durability - Saving costs of power for lightening and air-conditioning - In comparison with Aluminum, Polynum surface is lighter but softer and more inflammable Applications - Lay directly under roofs made of metal, brick or cement fibers in industrial workshops, commercial buildings, stores, supermarkets, gymnasia, etc. and residential houses. - Lay on plastic, gypsums hang-over ceilings - Attach to partitions and line under automobile ceilings of all kinds   Experimental model  
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