After reduction annealing for about 70 minutes at approximately 900° C., the powder, having {HEAD ~ a residual oxygen content} of less than 0.15 percent by weight and a particle size after sieving of {TAIL ~ less than 0.2 mm}, was mixed with microwax as a lubricant 
After reduction annealing for about 70 minutes at approximately 900 ° C. , the powder , having { HEAD ~ a residual oxygen content } of less than 0.15 percent by weight and a particle size after sieving of { TAIL ~ less than 0.2 mm } , was mixed with microwax as a lubricant
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH