The carbon content of the powder mixture is no more than 0.05% by {HEAD ~ weight} and the reduction annealing takes {TAIL ~ place} in a temperature range of 850° 950° C 
The carbon content of the powder mixture is no more than 0.05 % by { HEAD ~ weight } and the reduction annealing takes { TAIL ~ place } in a temperature range of 850 ° 950 ° C
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH