... ,1.25MPa, 1.6MPa, 2.0MPa ,2.5MPa· Colors: light grey, white or other colors on request· Connection: socket fusion joint, ... or hot water supply, heating system including flooring heating, wall heating and radiating system, Central air conditioning system, industrial liquids ... Heat Preservation: low thermal conductivity which is only 1/1500 of brass pipe, and 1/250 of steel pipe· Non-toxic: no ...