{HEAD ~ A crankshaft} 1 wherein said crankshaft body is steel and said balancer weights are {TAIL ~ iron} 
{ HEAD ~ A crankshaft } 1 wherein said crankshaft body is steel and said balancer weights are { TAIL ~ iron }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL