Stretch-blown plastic container with a handle region made integral and method of production for the plastic container

A stretch-blown plastic container, comprising:

• a container body which encloses a filling volume, the container body including a container bottom at a first end;
• a container neck which adjoins the container body at a second end of the container body which is opposite the first end, the container neck having a container opening;
• and
• an integrated handle region, the handle region being hollow and joined to the filling volume which is enclosed by the container body,
• wherein a through opening is recessed between the handle region and the container body, said through opening being bordered by wall parts of the container body which have been welded to one another and by wall parts of the handle region which have been welded to one another such that said through opening is bordered over its entire periphery, wherein the respective wall parts of the container body and the respective wall parts of the handle region have a laser weld seam between them, wherein spaced apart from the weld seam, the through opening is bordered by an edge, the edge being formed by thermal cutting as a rounded bead free of burrs.