A failure of a wall of {TAIL ~ the preform} or the container during expansion forms the discontinuous container having a hole through which {HEAD ~ the blow air} flows to form the blow air sound level exceeding the predetermined sound level set point 
A failure of a wall of { TAIL ~ the preform } or the container during expansion forms the discontinuous container having a hole through which { HEAD ~ the blow air } flows to form the blow air sound level exceeding the predetermined sound level set point
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH