A paint application apparatus includes a paint supply switching device , {TAIL ~ at least two paint supply containers} , a paint spray nozzle , and a paint line connecting {HEAD ~ the color switching device} to the spray nozzle  
A paint application apparatus includes a paint supply switching device , { TAIL ~ at least two paint supply containers } , a paint spray nozzle , and a paint line connecting { HEAD ~ the color switching device } to the spray nozzle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH