@Elonupdate88 I have a extraordinari projecte that I make peces of like books or partes Luke tapias in esteriofome whith concrete preced .
No burn
Light
Ani forme
Floats
Isolante
Temperatura
Sonora
I have fotos videos and testes on books 1 bloke 22x11x6.5 mm soporte 30 Tones and brok