The inventive method has been found to produce {HEAD ~ a workpiece} having {TAIL ~ a very low level} of metallic and particulate contaminants on its surface 
having
The inventive method has been found to produce { HEAD ~ a workpiece } having { TAIL ~ a very low level } of metallic and particulate contaminants on its surface
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH