Soak for 2 weeks. Boil in water for 4 hours, at least 8 hours if there is more wood.

Be sure to tie the work with hemp rope.

Bake with steam 100 for 2 hours when cooked.

After the exam, flatten, compress and reshape.

When it is finally used, it is made into a finished product and brushed with tung oil for 4 times. Finally, use, hemp and polishing. Waxing and polishing. Molding.