| HS Codes | Unit Code | Unit | Descriptions in Chinese | Descriptions in English |
|---|---|---|---|---|
| 72021100 | 9 | 千克 | 锰铁，按重量计含碳量＞2% | Ferro-Mg, containing by weight more than 2% of carbon |
| 72021900 | 9 | 千克 | 锰铁，按重量计含碳量≤2% | Ferro-Mg, nes |
| 72022100 | 9 | 千克 | 硅铁，按重量计含硅量＞55% | Ferro-silicon, containing by weight more than 55% of silicon |
| 72022900 | 9 | 千克 | 硅铁，按重量计含硅量≤55% | Ferro-silicon, nes |
| 72023000 | 9 | 千克 | 硅锰铁 | Ferro-silico-Mg |
| 72024100 | 9 | 千克 | 铬铁，按重量计含碳量＞4% | Ferro-Cr, containing by weight more than 4% of carbon |
| 72024900 | 9 | 千克 | 铬铁，按重量计含碳量≤4% | Ferro-Cr,, nes |
| 72025000 | 9 | 千克 | 硅铬铁 | Ferro-silico-Cr, |
| 72026000 | 9 | 千克 | 镍铁 | Ferro-nickel |
| 72027000 | 9 | 千克 | 钼铁 | Ferro-molybdenum |
| 72028010 | 9 | 千克 | 钨铁 | Ferro-tungsten |
| 72028020 | 9 | 千克 | 硅钨铁 | Ferro-silico-tungsten |
| 72029100 | 9 | 千克 | 钛铁及硅钛铁 | Ferro-titanium & ferro-silico-titanium |
| 72029210 | 9 | 千克 | 钒铁，按重量计含钒量≥75% | Ferro-vanadium,containing vanadium by weight≥75% |
| 72029290 | 9 | 千克 | 钒铁，按重量计含钒量＜75% | Ferro-vanadium containing vanadium by weigh﹤75% |
| 72029300 | 9 | 千克 | 铌铁 | Ferro-niobium |
| 72029911 | 9 | 千克 | 速凝永磁片 | Rapidly solidified permanent magnetic sheet |
| 72029912 | 9 | 千克 | 钕铁硼磁粉 | Magnetic powder,of Nd-Fe-B alloy |
| 72029919 | 9 | 千克 | 其它钕铁硼合金 | Nd-Fe-B alloy, nes |
| 72029991 | 9 | 千克 | 按重量计稀土元素总含量在10％以上的其他铁合金 | Other ferro-alloys, with rare-earth>10% by weight |
| 72029999 | 9 | 千克 | 未列名铁合金 | Ferro-alloys,nes |
