| 摘要 |
<p>Cooling fluid is supplied through an inlet 9 to a space defined between external and internal peripheral walls 2, 3 of an elongate housing. The fluid passes through holes 8 in the internal wall onto a rolled metal rod, wire or bar passing through the duct defined by the internal wall 3. The fluid escapes from the duct through its ends and also through transverse horizontal divergent conduits 12 leading directly to the exterior of the housing. <IMAGE></p> |
