... ; 4 bars;Resistance to high temperature, high pressure, corrosion with excellent pMedium layer of aluminum plastic composite pipe is welded aluminum ... bounce.2)Resistance to high temperature, high pressure, corrosion with excellent performance;3)Inner wall of the pipe is smooth, thus ... Property of fire retardation;5)Good performance of heat insulation with a thermal conductivity of 0.45W/m, which is ...