The sound of water pipes will not produce infrasound damage to the human body?
Most of the polyethylene benzene board insulation, paste the external walls.
The general pipe and pipe material to connect manufacturers to supply matching, so that more to ensure quality
The first look at the factory declaration materials in the building level. The second depends on the material you use sandwich panels. (Generally Caigang sandwich rock wool no problem, glass wool depends on the design requirements of the building).
