| 摘要 |
PROBLEM TO BE SOLVED: To provide a building material usable as a lower frame material instead of an expensive stainless steel building material. SOLUTION: The lower frame material 7 is laid to contact with a concrete floor 2, and forms an alkali resistant protective layer on a surface for contacting with the floor 2 of an aluminum or aluminum alloy section having a hard anodic oxide film. A baking painting layer of fluororesin paint and urethane resin paint and an acrylic urethane resin painting layer are suitable for the protective layer. The thickness of the protective layer is suitably set in 8 to 35μm. COPYRIGHT: (C)2006,JPO&NCIPI
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