Orbital cellulitis is a serious condition that usually occurs secondary to infection in the maxillary and ethmoidal paranasal sinuses. If left untreated, it can lead to blindness, cavernous sinus thrombosis, meningitis, or cerebral abscess.
Marine plywood is frequently used in the construction of docks and boats. It is much more expensive than standard plywood: the cost for a typical 4-foot by 8-foot 1/2-inch thick board is roughly $125 U.S. or around $3.50 per square foot, which is two to three times as expensive as standard plywood, depending on grade.arine plywood can be graded as being compliant with BS 1088, which is a British Standard for marine plywood. There are few international standards for grading marine plywood and most of the standards are voluntary. Some marine plywood has a Lloyd's of London stamp that certifies it to be BS 1088 compliant.
Exterior plywood is used in the construction industry in roofing, in flooring where water is present such as a bathroom or kitchen, as sheathing on the exterior of the home, in the construction of transoms and dormers and as a support for masonry. Composite plywood is exclusively used by furniture and cabinetmakers.