KEYMARK,CE Solar Thermal Collector SC-C01 Separate ... of large water consumption.* Material: Aluminum alloy* Solar vacuum tube with heat pipe a) Size: 58 x 1,800mm ... 72 hours* Max. pressure bearing: 0.6MPa* ISO9001 / CE certificate/EN-12975* 3 years international responsibility for free repairing ... 10 bar 7, working pressure: 6 bar8, Coating of vacuum tube: SS-C/CU 9, Heat Pipe: anti-freezing > ...