... pipe 2.Size:dn16/20/25/32mm 3.High temperature reistant, sanitary 1. Reduced thermal expansion2. For ... aluminum, the expansion co-efficient a samll metal pipe with considerable strength, toughness, impact resistance.5. ... conductivity of metal pipes1/200 only, hot water pipe insulation for excellent energy saving effect.8. Light weight, ... ,0058P02.75575x7,505 pex multilayer pipe for underfloor heating