其他摘要：This paper introduces a new fire door’s structure, main material requirements, production process, product testing means, and the dimensional tolerances of product requirements and performance are described in detail. In this paper, the narrative is less, mainly in the form and the type of structure diagram as the elaborate.
关键词：结构型式;使用材料;检测仪器;尺寸公差
其他关键词：Structure Type; The Use of Materials; Detection Instrument; Size Tolerance
