For example, the cap 1 may be formed by molding a homopolymer polypropylene with a modulus of {HEAD ~ elasticity} of {TAIL ~ 1450 MPa}  
of
For example , the cap 1 may be formed by molding a homopolymer polypropylene with a modulus of { HEAD ~ elasticity } of { TAIL ~ 1450 MPa }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH