| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what are railway tracks made of | 1.67 | 0.4 | 5063 | 5 |
| what are railroad tracks made of | 1.51 | 0.6 | 5971 | 59 |
| railway tracks are made up of | 1.23 | 0.1 | 4706 | 97 |
| are railroad tracks made of iron | 1.88 | 0.1 | 1123 | 18 |
| what are railroad tracks made out of | 1.72 | 0.3 | 6034 | 29 |
| designs made from antiques railroad tracks | 1.88 | 0.4 | 6114 | 13 |
| what were the first railroad tracks made of | 0.11 | 0.1 | 8586 | 5 |
| originally railroad tracks were made of | 0.18 | 0.8 | 2602 | 99 |
| how are railroad tracks made | 1.17 | 0.7 | 706 | 11 |
| what steel are railroad tracks made of | 0.16 | 1 | 3835 | 46 |
| what metal are railroad tracks made of | 0.45 | 0.6 | 9979 | 58 |
| what were railroad tracks made of | 0.85 | 0.8 | 7379 | 7 |
