The bubble forming apparatus 1, wherein a height adjustment device is coupled with said infusing casing and can be adjusted so as to vary {HEAD ~ height} of {TAIL ~ said infusing casing} 
of
The bubble forming apparatus 1 , wherein a height adjustment device is coupled with said infusing casing and can be adjusted so as to vary { HEAD ~ height } of { TAIL ~ said infusing casing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL