Blocking of the joinery board
indicating less formaldehyde release; if the smell pungent, indicating more formaldehyde release.
If the blockboard gluing strength is not good, weigh one end of the force will be a "creak" open plastic sound. If the big core plate distributed fragrance of wood smell
Some blockboard cut corners, solid wood cracks, if the nail at the gap, the basic no nail grip force. Consumers can choose to look at the sun, solid wood cracks will be through the white
Good blockboard surface smooth, no warping, no deformation, no blistering, no sag; core arrangement uniform and neat, small gap, core no decay, fracture, insect hole, knots and so on.
