| 摘要 |
<p>1,041,507. Casings for steam generators, SULZER BROS. Ltd. June 10, 1965 [June 6. 1964], No. 24663/65. Heading F4A. [Also in Division E1] A steel sheet comprises corrugations 2 at right-angles to each other, the axis of each corrugation dividing another corrugation into unequal parts. The ratio of the length of the parts may be 1: 2. The corrugations may be on one or both sides. The sheet may be used for wall coverings of steam generators and heatexchangers.</p> |
