| 摘要 |
<p>A field-assemblable apparatus for manufacturing spiral steel pipes includes one or more steel pipe carrying unit having a connection structure, a first steel pipe support having a first header and movable along the steel pipe carrying unit, and a second steel pipe support for continuously converting a steel sheet inserted into the steel pipe carrying unit into a spiral shape having an intended diameter using a second header. Steel pipes having intended diameters can be manufactured and supplied in the field.</p> |
