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Ensure safe transport with our, Size 10.75 X 10.75 inches-inch DOT 1977 Nitrogen Refrigerated Cryogenic Liquid Class 2 Placard, made from .040 aluminum for durability. This corrosion-resistant placard marks nitrogen's cryogenic hazard. Pre-drilled holes facilitate easy mounting. Meet DOT Class 2 standards with this durable placard.