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.

• 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。