| 摘要 |
The method of fabricating a pipe elbow involves forming elbow segment patterns on a plate, rolling the plate into a cylindrical shape, cutting out elbow segments according to the pattern, reorienting the segments to form an elbow, and joining the segments. - After the step of rolling and before the step of cutting, the corresponding edges of the plate are joined to form a cylinder. The step of reorienting comprises rotating every other one of the segments ninety degrees relative to the other segments.
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