Typically, side arms provided on such needle housings are at {HEAD ~ an angle} of {TAIL ~ 30 degrees} relative to the axis of the needle 
of
Typically , side arms provided on such needle housings are at { HEAD ~ an angle } of { TAIL ~ 30 degrees } relative to the axis of the needle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH