ΟΙ ΧΑΙΡΕΤΙΣΜΟΙ ΤΗΣ ΠΑΝΑΓΙΑΣ((Α,Β,Γ,Δ) με γράμματα

ΟΙ ΧΑΙΡΕΤΙΣΜΟΙ ΤΗΣ ΠΑΝΑΓΙΑΣ((Α,Β,Γ,Δ) με γράμματα

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Wikipedia ‏@Wikipedia Aerogel is a synthetic ultralight material in which the liquid of a gel has been replaced with a gas. Read more:

28. Wikipedia ‏@Wikipedia 
Aerogel is a synthetic ultralight material in which the liquid of a gel has been replaced with a gas. Read more: https://en.wikipedia.org/wiki/Aerogel