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 water, and a wedge block for adjusting {HEAD ~ the control range} of {TAIL ~ said rotary cap}, wherein 
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 water , and a wedge block for adjusting { HEAD ~ the control range } of { TAIL ~ said rotary cap } , wherein
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