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| 引弧引出板 | |||
| 焊接引弧板 | |||
| 引弧引出板点固在焊缝起端或末端工件边缘上的工艺板 | |||
| 焊珠端部补助片; 引弧板; 引出板; 焊缝端部附片 | |||
| end tab: 1 phrase in 1 subject |
| Technology | 1 |
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