| Giver | Post | Date |
| yvankd | Re: Two varieties of steel, A and B, have a ratio of iron to chromium as 5 | 21-Apr-2019 |
| tman116 | Re: Two varieties of steel, A and B, have a ratio of iron to chromium as 5 | 03-Oct-2018 |
| gps5441 | Re: Two varieties of steel, A and B, have a ratio of iron to chromium as 5 | 14-Nov-2017 |
| testcracker | Re: Two varieties of steel, A and B, have a ratio of iron to chromium as 5 | 12-Sep-2017 |
| GoodnessShallPrevail | Re: Two varieties of steel, A and B, have a ratio of iron to chromium as 5 | 06-Sep-2017 |