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| 41. | Union for butt joints--Body |
| GB/T3756.2-1983卡套式对接直通接头体 |
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| 42. | double-bevel butt weld |
| K形坡口对接焊缝 |
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| 43. | double u butt groove weld |
| 双u形对接焊 |
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| 44. | Male elbow for butt joints--Assembly |
| GB/T3758.1-1983卡套式锥螺纹对接直角管接头 |
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| 45. | double-bevel butt weld K |
| 形坡口对接焊缝 |
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| 46. | Union for butt joints--Assembly |
| GB/T3756.1-1983卡套式对接直通管接头 |
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| 47. | flash butt-welded anchor chain cable |
| 闪光对接焊锚链 |
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| 48. | creating a butt joint by welding. |
| 通过焊接产生对接接头的焊接。 |
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| 49. | single-welded butt joint with back |
| 带垫板单面对接焊 |
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| 50. | Male connector for butt joints--Assembly |
| GB/T3755.1-1983卡套式锥螺纹对接直通管接头 |
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