The laser for use in {TAIL ~ the laser spot welding} include a solid state laser that can weld and process metals, for example, a YAG laser and {HEAD ~ a ruby laser} 
The laser for use in { TAIL ~ the laser spot welding } include a solid state laser that can weld and process metals , for example , a YAG laser and { HEAD ~ a ruby laser }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD