Soffit for wooden barrel is made of external layers of good quality wood and internal layers of cheaper wood, which are processed, manufactured in their final shape and stuck together

摘要

The soffit is made of successive layers of wood. The two external layers are made of good quality wood with high selling value. The two internal layers are made of cheaper wood. Layers are dipped in hot water and extraction enzymes mixture, which allow quick drying and sap absorption. Then they are manufactured in their final shape and stuck together.