The hydrogen permeable material exhibits {TAIL ~ excellent hydrogen permeability} as well as excellent resistance to {HEAD ~ embrittlement} caused by the permeation of hydrogen 
The hydrogen permeable material exhibits { TAIL ~ excellent hydrogen permeability } as well as excellent resistance to { HEAD ~ embrittlement } caused by the permeation of hydrogen
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH