Blow-molded plastic bubbles producers

摘要

Blow-molded plastic bubbles generator, comprising a plate-shaped housing (2), which by means of blow molding in a forming tool (12) consists of a hollow blank (11) is made, wherein the plate-shaped housing (2) is formed integrally as one piece and a continuous housing wall (3), and wherein the housing wall (3) a plurality of through holes (301) by piercing of the blank (11) by means of needles (13) on the inner wall of the forming tool (12) are made during the blow molding.