However it has now been shown that useful antibacterial properties can be obtained from {HEAD ~ hard surface cleaning compositions} containing {TAIL ~ both quaternary ammonium compounds} and abrasive particles, in particular particles of a soluble abrasive material 
However it has now been shown that useful antibacterial properties can be obtained from { HEAD ~ hard surface cleaning compositions } containing { TAIL ~ both quaternary ammonium compounds } and abrasive particles , in particular particles of a soluble abrasive material
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH