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Man - only hand to be seen - cutting some glass wool as material for thermal insulation of a new building
Energy audit of a real house with solar panels installed for renewable energy and economic
Drawing of a house exterior and interior with a magnifying glass to an energy audit
illustration of several solar homes located in a meadow for an environmentally sustainable electric power and renewable
Huge industrial high-voltage substation power transformer at an power plant
Drawing of a house exterior and interior with a magnifying glass to an energy audit
Couple installing thermal insulation thru glass wool on their roof, they are looking pretty proud
illustration of a solar house surrounded by green leaves for an environmentally sustainable electric power and renewable
Man - only hand to be seen - cutting some glass wool as material for thermal insulation of a new building
Worker in overall is setting thermal insulating material with gloves in the roof
Worker in overall is setting thermal insulating material with gloves in the roof
Worker in overall doing construction the roof with thermal insulating material
Worker in overall is cutting insulating material with gloves and knife