扁圆吊架[Oblate hanger]

圆形弯头[Circular Bend]

三通[Tee]

软管[Hose]

超强玻纤风管[Super fiberglass duct]

扁圆长轴内接头[The long oblate inner joint]

Y型扁圆三通[Y flat three]

TC支管[TC branch]

BT型扁圆三通[BT flat three]

通风栅[Ventilation grid]

双层百叶栅[ Double shutter]

单层百叶栅[ Single louver]