Coated paper: paper covered with a substance to improve its qualities including weight, surface gloss, smoothness or reduced ink absorbency.
Doubled glazed windows: two glasses with a vacuum in between to reduce heat loses
Eco- friendly: not harmful to the environment
Heatinsulation: use special material to limit heat loses from the house
Solar cells: devices that turn sunlight into electricity
Sustainability: safeguarding the world, for ourselves and for future generations
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