... .Corrision resistant 5.ISO9001&UKAS Non sparking Hand tools Ball Head hearing needle,Hearing Needle,Aluminium bronze hearing needle,Beryllium copper ... warehouse 6) Punching 7) Through the drawbench or slotting machine 8) PE plain end and chamfering 9) Drill hole 10) Perfect ... quotation upon receipt of your detailed requirement. Hearing needle,Ball head hearing needle,hand tool hearing needle