The carbon content is preferably limited to {HEAD ~ a maximum} of 0.04 percent by weight, in particular, to a maximum of {TAIL ~ 0.02 percent} by weight 
The carbon content is preferably limited to { HEAD ~ a maximum } of 0.04 percent by weight , in particular , to a maximum of { TAIL ~ 0.02 percent } by weight
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH