In order to remove hollow closed end needle 10 force is applied to remove {HEAD ~ stopper} 26 with {TAIL ~ its teeth} 27 and 28 from surface 31 
with
In order to remove hollow closed end needle 10 force is applied to remove { HEAD ~ stopper } 26 with { TAIL ~ its teeth } 27 and 28 from surface 31
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH