Why can't the drawer of the wooden sofa be pulled?
If there is the drawer of the chute, pull it, that is, the chute is broken, and if there is no chute, that is, wood rubbing wood, pull it, it should be the work of the problem, the size is not appropriate, or caused by side! Get stuck
It may be offset when the slideway is installed and adjusted, or not, that is, the screw of the slideway is not tightened and the nut is higher than the slideway plane.