{HEAD ~ Two surrounding bodies} 10 may be separated {TAIL ~ metals} or be connected as a whole metal plate which are folded in half so as to be formed as an upper and a lower surrounding bodies 10, and thus the supporting body 20 can be held between the two surrounding bodies 
separated
{ HEAD ~ Two surrounding bodies } 10 may be separated { TAIL ~ metals } or be connected as a whole metal plate which are folded in half so as to be formed as an upper and a lower surrounding bodies 10 , and thus the supporting body 20 can be held between the two surrounding bodies
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH