How to make a IWISTAO HDF board empty speaker cabinet?

The video demo the manufacturing process for IWISTAO empty speaker cabinet made of HDF board. Step by step as below. 1. Smooth cutting with uniform density board 2. Precise hole cut by CNC 3. Environmentally friendly woodworking glue 4. Strong and durable enclosure with air nail reinforcement 5. Rosewood grain leather, all hand-painted #iwistao #fullrangespeaker #speaker