Product information:

Core material: flax double-density acoustic cotton
Shape: rectangle
Material: flax double-density acoustic cotton-patent mold aluminum frame
Specification: 300x300x50mm, 600x300x50mm, 600x600x50mm, 1200x300x50mm, 1200x600x50mm, 1800x300x50mm, 1800x600x50mm

Packing list:

Sound absorption board * 1