| 摘要 |
PURPOSE:To improve manufacturing properties of first and second end plates of a fan casing of a ventilator for a duct, to improve management of components and to improve productivity and to contribute to ward cost reduction. CONSTITUTION:A first end plate 36 and a second end plate 37 are so formed that mounting collars 36c, 37c are vertically reversed, suction ports 36a, 37a are formed in the same shape and entire flat surfaces are also formed in the same shapes. |
