***** passage:1.2 mm copper
2.Accessories:plastic bottom support, silicic gasket
***** chest: 2.0mm Aluminum alloy
4.Quality Certificate: EN12975, ISO9001:2000, CE
5.Bracket:1.8mm Aluminum alloy
6.Warranty:5 years for full system
7. insulation layer: 50mm Rock Wool
8. Working Temp.:99 Cel...