| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Unknown | China national standards | MT | USD | 20190601 | |
| Unknown | China national standards | MT | USD | 20190523 | |
| Unknown | China national standards | MT | USD | 20190522 | |
| Unknown | China national standards | MT | USD | 20190516 | |
| Unknown | China national standards | MT | USD | 20190515 | |
| Unknown | China national standards | MT | USD | 20190514 | |
| Unknown | China national standards | MT | USD | 20190512 | |
| Unknown | China national standards | MT | USD | 20190501 | |
| Unknown | China national standards | MT | USD | 20190421 | |
| Unknown | China national standards | MT | USD | 20190420 |
