The dual valves can be used, for example, in personal care products such as toothbrushes and razors to dispense {HEAD ~ fluids} such as {TAIL ~ dentifrice} and shaving aids 
The dual valves can be used , for example , in personal care products such as toothbrushes and razors to dispense { HEAD ~ fluids } such as { TAIL ~ dentifrice } and shaving aids
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH