本文介绍该产品的设计思路、结构特点、主要技术数据、保护特性、外形和安装尺寸。

This article introduced the design thinking, structure features, main technical data, protection characteristics, overall and mounting dimensions.

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外壳：采用优质热镀锌钢板制成，具有优良的耐大气腐蚀性能，进风口和出风口外形尺寸相同，可与风管直接相连，以便于安装。

Housing: Galvanize steel sheet material could be able to bear corrosive. Same size for the inlet and outlet can install conveniently. Connecting to the piping directly makes for installation.

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进风口和出风口外形尺寸相同，以便于安装。

Same size for the inlet and outlet can install conveniently.

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