Although atrial fibrillation itself usually isn't life-threatening, it is a serious medical condition that sometimes requires emergency treatment. It may lead to complications. Atrial fibrillation can lead to blood clots forming in the heart that may circulate to other organs and lead to blocked blood flow (ischemia).
Fiberboard (American spelling) or fibreboard (Commonwealth spelling) is a type of engineered wood product that is made out of wood fibers. Types of fiberboard (in order of increasing density) include particle board, medium-density fiberboard, and hardboard.Fiberboard is sometimes used as a synonym for particle board, but particle board usually refers to low-density fiberboard.or pieces that will be visible, a veneer of wood is often glued onto fiberboard to give it the appearance of conventional wood. Fiberboard is also used in the auto industry to create free-form shapes such as dashboards, rear parcel shelves, and inner door shells.
Corrugated fiberboard is a material consisting of a fluted corrugated sheet and one or two flat linerboards. It is made on flute lamination machines or corrugators and is used in the manufacture of shipping containers and corrugated boxes. The corrugated medium and linerboard board both are made of kraft containerboard, a paperboard material usually over 0.01 inches (0.25 mm) thick. Corrugated fiberboard and paperboard are sometimes called corrugated cardboard, although cardboard might be any heavy paper-pulp based board.