Solar water heater vacuum tube, tube heat collection copper tube inside the thermal conductivity liquid is what material?
What is generally not a serious toxicity (in our people, tonyred, drainage oil plasticizer, etc. various substances under general exercise a little poison is not what to do), but the vacuum tube is damaged or if to replace it, will affect the use of the
The composition of the tube can be generally classified as trade secrets, I do not know
Quality solutionIs the thermal conductivity of the medium, the conventional pipe is generally water, oil, water soluble alcohol and corrosion inhibitors
