| ALLOY | CONTENT | SUGGESTED USE |
| OTT.67/33 | 67% COPPER | MECHANICAL |
| OTT.67/33 MICRO2 | 67% COPPER | CASTING |
| OTT.70/30_CB | 70% COPPER | CASTING |
| OTT.73/27 MICRO | 73% COPPER | CASTING |
| OTT.82/18 MICROG | 82% COPPER | CASTING |
| OTT.82/18 MICROP | 82% COPPER | CASTING |
| OTT.85 CAST | 85% COPPER | CASTING - GOLD COLOR |
| OTT.85 SPECIAL | 85% COPPER | MECHANICAL |
| OTT.96/4 J | 96% COPPER | CASTING |
