| 摘要 |
PURPOSE: A plurality of holes are formed in a finish profile and a door frame without forming through holes or a welding portion in a steel wall, thereby reducing working process. CONSTITUTION: A fireproof door is installed at a steel wall(4) mounted with an edge cover(16) around a door blade. A receiving portion having a plurality of holes are extended vertically to a rear wall, and a door frame(3) receiving a bearing portion(6) is formed in a front part of the steel wall. A finish profile(5) having a bar(14) adjacent to a plurality of holes is installed in a rear part of the steel wall. The holes of the receiving portion and the holes of the finish profile are corresponded, and fixed by bolts and nuts.
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