The primary ingredients comprise in {HEAD ~ relative proportions}, {TAIL ~ 96.70 99.83 wt % SrTiO3}, 0.15 2.30 wt % WO3, and 0.02 1.00 wt % CuO 
The primary ingredients comprise in { HEAD ~ relative proportions } , { TAIL ~ 96.70 99.83 wt % SrTiO3 } , 0.15 2.30 wt % WO3 , and 0.02 1.00 wt % CuO
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH