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