6-20-30+7MgO
10-10-40+2MgO
10-40-10+2MgO
10-52-10+0.5MgO
15-15-30+2MgO
15-30-15+2MgO
17-10-27
20-10-20+2MgO
20-20-20+2MgO
12-12-36+2MgO
10+40+10
10-52-10
26+6+11
13+5+42
10-10 -40
20 -20 -20 +TE
15 -30 -15
15-15-30
12 -12 -36
