instruction:
In this task, you are to Translate German text to English
question:
Die Erfindung betrifft des Weiteren einen solchen Rohrkörper (1).
answer:
The invention further relates to tubular member (1) of said type.


question:
(Figur 4)
answer:
(Figure 4)


question:
Formeln (1) bis (3)
answer:

Formulas (1) to (3)