An infusing unit is employed in {HEAD ~ a bubble forming apparatus} which includes a venturi tube type inlet pipe unit, {TAIL ~ a discharge pipe unit}, and a branch pipe 
An infusing unit is employed in { HEAD ~ a bubble forming apparatus } which includes a venturi tube type inlet pipe unit , { TAIL ~ a discharge pipe unit } , and a branch pipe
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH