Crystal-sand acoustic panel

Crystal-sand acoustic panel is made of natural particles. There are porous acoustic material with irregular pores on the surface, a large number of irregular and interconnected tiny pores are formed inside the plate.
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Crystal-sand acoustic panel
Sandrock Acoustic Panel

Sandrock Acoustic Panel

Sandrock Acoustic Panel is a new kind of seamless sound absorbing material, which is basically a hard perforated board with a certain mesh number and made of carefully-selected sands, polymerized with binding material
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