when you choose the big core board, be sure to saw a corner, check the quality inside.
to be posted on the outside of a layer of plywood as a panel, otherwise there will be paint Bubble and other issues.
In use, the big core board can only be long side of the "parallel open", can not be sideways saw the use of.In addition, the big core board can not be used when the panel,
Good big core board, which between the small wood, have a jagged-shaped tenon interface.
Inside the stitching of small pieces, the gap can not exceed 5 mm, can not use with bark, cavity and knot of wood.
