Procedure and device for the manufacture of soldered or solder-free steel tube curves without straight part, starting from a straight tube (Machine-translation by Google Translate, not legally binding)

摘要

Procedure and device for the fabrication of welded or seamless steel tube bends, without a straight part, starting from straight pipe, characterized, because it is carried out by hot or cold thrust on a curved core. (Machine-translation by Google Translate, not legally binding)