For example, {HEAD ~ interlocking pavements} make use of {TAIL ~ concrete pavers} that are available in standard sized dimensions, e.g., 6, 7 and 8 cm 
For example , { HEAD ~ interlocking pavements } make use of { TAIL ~ concrete pavers } that are available in standard sized dimensions , e.g. , 6 , 7 and 8 cm
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH