The housing can be formed from {HEAD ~ a substrate} having {TAIL ~ perforations} to assist in adhering components internal to the housing 
The housing can be formed from { HEAD ~ a substrate } having { TAIL ~ perforations } to assist in adhering components internal to the housing
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH