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Persona de contacto Mr. li
linchi industry zone, binzhou, shandong
steady quality solar vacuum tube and higer perfromance Material Borosilicate Glass 3.3 Stone Stones (Ø≤1mm) ≤1 piece in area of *0mm×*0mm; Stones (1.0mm≤Ø≤1.5mm) ≤ 2 pieces in the whole tube. Absorption of SELECTIVE COATING ≥0.*2 (AM1.5) Emission of SELECTIVE COATING ≤0.*8 (*0℃±5℃) Vacuum <3×***3 Pa Stagnation Temperature >**0℃ Solar radiance exposure ≤3.6MJ/m2 Coefficient of Average Heat Loss <0.*0W/(m2℃) Selective absorber coating AL-N/AL Maximum Strength 0.6Mpa
