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