{TAIL ~ A water temperature and flow rate control device} comprising a casing and a rotary cap mounted on said casing and turned to regulate the temperature and output volume of {HEAD ~ water}, and a wedge block for adjusting the control range of said rotary cap, wherein 
{ TAIL ~ A water temperature and flow rate control device } comprising a casing and a rotary cap mounted on said casing and turned to regulate the temperature and output volume of { HEAD ~ water } , and a wedge block for adjusting the control range of said rotary cap , wherein
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