In order to fully and rationally use forest resources to develop plywood production and make the best use of materials, China's newly formulated national standard (reported draft) is divided into plywood for finishing according to the current use of glued panels (for the surface needs to be coated with clear coating) Furniture, sewing machine table and various electrical enclosures, etc.), plywood for decoration (for construction, furniture, vehicle and ship decoration materials), generally with plastic table (for packaging, padding and other purposes) And thin wood decorative plywood (used as a high-grade decorative material for buildings, furniture, vehicles, ships, etc.), according to the bonding strength is further divided into: (1) Class I (NQF) - weather resistant, boiling water resistant plywood. This type Plywood is durable, resistant to boiling or steaming and can be used outdoors. (2) Class II (Ns) - water resistant plastic platen. It can withstand cold water or short-term hot water impregnation, but is not resistant to boiling. (3) Class III (Nc) - moisture resistant plywood. It has a certain moisture resistance and is suitable for indoor use. (4) Class IV (BNc) - non-durable plywood. Our LED Emergency Batten Light is perfect for commercial and industrial use, made from solid polycarbonate with a thick poly carbonate diffuser the unit is very durable this fitting has an IP rating of 65 and is anti corrosive. Interal lithium battery pack to make emergency time rating from 60-180mins. The fitting gives off an impressive 5850 lumens using only 65 watts of energy making it a great energy saving light fitting. The batten uses high quality LED chips giving off a great array of light to any indoor and outdoor area. Emergency Batten Light,Emergency Led Batten,Emergency Light Batten,Led Emergency Batten Light Foshan Nai An Lighting Electric Co.,ltd , https://www.articalight.com