| 摘要 |
A floor board is provided to make construction simple, to heighten heating efficiency, to have natural aesthetic sense and touch and to have low price by coupling a soft flooring material with a hard flooring material. A floor board(10) is formed by attaching a soft flooring material(300) on a hard flooring material(200), wherein the hard flooring material is provided with a projection(230) and a preliminary groove(220) formed in the L-shape, and the soft flooring material is formed to have a thickness of 0.5~5mm and coupled with another soft flooring material by inserting the projection to the preliminary groove.
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