| 摘要 |
<p>The invention relates to the joint of two parallel tubes with thick walls, which allows the fluid to pass from one tube to another making a 180 degree elbow. The joint is done with two tube elbows at 90 degrees, having the same nominal diameter as the two parallel tubes, which have to be fitted; out of these, a segment is removed by mechanical processing, after which the two elbows are welded to each other and to the two tubes.</p> |
