| 摘要 |
<p>A compressed air outlet grid (31) is suspended on the side of a bath or treatment tank by a fitting (26) on the side of the tank also used to support the air hose (30). The hose itself is supported by an elongated arm (10) which slides into a recess in the fitting. This arm is wider than the grid, and allows the hose to slide sideways. The hose has a smooth outside surface and is made of a material having a poor heat conductivity, and may incorporate a heat insulating lining. The fitting carries a hook for suspending the grid.</p> |
