Archidply Industries Ltd. Manufactures Fire Retardant Plywood of BWR Grade. Archidply Industries Ltd. Is certified ISO 9001: 2000 for quality management systems. Fire Retardant Plywood of BWR grade is processed to meet the prescribed standard specified in IS 5509-1980. Vacuum treatment is given to the plywood, using suitable chemicals such as di-ammonium hydrogen phosphate as prescribed in the IS specification. This plywood does not encourage spreading of flames and has the quality to retain strength even under fire attack. Archidply Industries Ltd. Fire Retardant Plywood of BWR grade find applications in ship-building, railway coaches, vehicle bodies, in boiler house, kitchen, inner roof wall linings, partitions and exhibition Stalls. The standard thickness of the plywood measures 4, 6, 9, 12, 16 and 19 mm and the standard size measures 8 x 4, 8 x 3, 7 x 4, 7 x 3, 6 x 4, 6 x 3, 6 x 3 feet.