... Pipe Diameter & Thicknessdia.=47±0.5mm &=1.6mm, dia.=58±0.5mm &=1.6mm,dia.=70±0.5mm &=2.0mm, ... Internal PipeDiameter & Thicknessdia.=37±0.5mm &=1. ... 6mm, dia.=47±0.5mm &=1.6mm,dia.=58±0.5mm &=1.6mm, Pipe ... .4 MJ/ m²Average Heat Loss CoefficientUlt=0.6~0.7W/( m².°C)Pressure-Endure Ability0.6MpaAbsorptive ...