... place.2) sandwich plate appearance, bright color, good overall effect, it sets the bearing, thermal insulation, fireproof, waterproof in one, ... effective sound insulation materials.8) we can design for you and send engineers to you9)we will give you the best quality with the best ... available,especially white gray,sea bule,redlengthIt is up to youdensityEPS8-30/m3 rockwool 80-120kg/m3Material of top/ ...