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| 81. | mild steel hexagonal nut |
| 六角螺丝帽 |
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| 82. | mild steel fire box |
| 软钢板火箱 |
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| 83. | mild steel machine screw |
| 机器螺丝 |
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| 84. | mild steel link chai |
| 铁链条 |
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| 85. | mild steel round bar |
| 软钢圆棒材 |
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| 86. | mild alkaline lubricating oil |
| 中等碱量润滑油 |
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| 87. | mild steel square nut |
| 四方螺丝帽 |
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| 88. | mild steel I-beam |
| 低碳工字钢 |
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| 89. | round mild steel bar |
| 圆条软钢 |
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| 90. | mild steel window section |
| 软钢窗料 |
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