{HEAD ~ A process} 4, wherein the amount of the metal element selected in the Periodic Table used in the contact treatment is in the range of from 0.001 to 0.5 part by {TAIL ~ weight} per part of platinum or palladium 
{ HEAD ~ A process } 4 , wherein the amount of the metal element selected in the Periodic Table used in the contact treatment is in the range of from 0.001 to 0.5 part by { TAIL ~ weight } per part of platinum or palladium
HEAD HEAD HEAD HEAD HEAD HEAD 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 TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH