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