| 1. | Method for chemical analysis of ferrotungsten 钨铁的化学分析方法 |
| 2. | Ferrotungsten - technical delivery conditions 钨铁.交货技术条件 |
| 3. | Specification for ferrotungsten 钨铁合金规范 |
| 4. | Methods for chemical analysis of ferrotungsten - the polarographic method for the determination of lead content 钨铁化学分析方法极谱法测定铅量 |
| 5. | Methods for chemical analysis of ferrotungsten - the infrared absorption method for the determination of sulfur content 钨铁化学分析方法红外线吸收法测定硫量 |
| 6. | Methods for chemical analysis of ferrotungsten - the infrared absorption method for the determination of carbon content 钨铁化学分析方法红外线吸收法测定碳量 |
| 7. | Methods for chemical analysis of ferrotungsten - the cinchonine gravimetric method for the determination of tungsten content 钨铁化学分析方法辛可宁重量法测定钨量 |
| 8. | Methods for chemical analysis of ferrotungsten - the molybdenum blue photometric method for the determination of silicon content 钨铁化学分析方法钼蓝光度法测定硅量 |
| 9. | Methods for chemical analysis of ferrotungsten - the phenylfluorone photometric method for the determination of tin content 钨铁化学分析方法苯基荧光酮光度法测定锡量 |
| 10. | Methods for chemical analysis of ferrotungsten - the molybdenum blue photometric method for the determination of phosphorus content 钨铁化学分析方法钼蓝光度法测定磷量 |