... EPDM,1.Light, flexible, closed cell, synthetic caoutchouc;2.Free of PVC, CFC. Material class: B2 according to ... λ0°C = 0,033 W/mK. Very good ozone resistance, UV-resistant. 7.Wall thickness: 13mm/20mm Lengths and Size ... of Copper ,Stainless Steel NoncorrosiveDIN1988Environment Friendly CFC ,HCFC free UV, Weather ResistanceExcellent Flexible Stainless Steel Corrugated PipeMaterial SUS304/316LOuter ...