The inner cylindrical member 40 is clamped between {HEAD ~ the spring} receiving {TAIL ~ portions} 4e of rear cylindrical members 4 and connection pipes 3 screwed on end portions of the rear cylindrical members 4 
receiving
The inner cylindrical member 40 is clamped between { HEAD ~ the spring } receiving { TAIL ~ portions } 4e of rear cylindrical members 4 and connection pipes 3 screwed on end portions of the rear cylindrical members 4
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH