What are the advantages of waterproof louver (1)

Keep warm in winter and cool in summer. The inner and outer frames of the heat-insulating profiles are combined with the softness of the inner and outer frames. The aluminum profiles are tightly closed, with excellent air tightness and water tightness. The blades are made of aluminum shutters, which make the windows truly show excellent heat insulation, heat preservation, sound insulation and function. The material is solid, which saves a lot of heating and cooling costs. The energy-saving effect is remarkable. The energy-saving cost of several years is enough to make up for the earlier investment.