MRC:
The element(s) used in the fabrication of the item,expressed in percent.ARRX
Chemical Composition Percentage:
Tin 63.5 pct, lead 35.73 pct, antimony 0.5 pct, bismuth 0.25 pct, copper 0.08 pct, other elements 0.08 pct, arsenic 0.03 pct, iron 0.02 pct, aluminum 0.005 pct, zinc 0.005 pct
MRC:
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.ZZZT
Specification Or Standard:
Sn63 composition and w form and raflux type and core condition and flux pct p3