Therefore, generation of {TAIL ~ scraps} and {HEAD ~ separation} of the protective member can be prevented 
Therefore , generation of { TAIL ~ scraps } and { HEAD ~ separation } of the protective member can be prevented
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH