More specifically, the present invention relates to {HEAD ~ cast iron alloys} which contain {TAIL ~ relatively high levels} of aluminum, yet are not brittle 
contain
More specifically , the present invention relates to { HEAD ~ cast iron alloys } which contain { TAIL ~ relatively high levels } of aluminum , yet are not brittle
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH