
Tungsten oxide may be used to prepare a transparent heat-insulating energy-saving film. In the hot summer, the new environmentally friendly heat insulation film can reduce heat inflow to reduce the use of air conditioning, thereby reducing electric charge and improving energy efficiency. More details, please visit: http://www.tungsten-powder.com/tungsten-oxide.html The smart film of nano particle size of tungsten trioxide can also shield 99% of ultraviolet rays, greatly reducing the heat of the sun entering into the room, without affecting the passage of…