Práctica de examen para Pipeline
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21:43
Soldando una pipa de 4 pulgadas en la linea
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20:18
Soldadura en pipa de 6 pulgadas 5g API 1104
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16:21
6GR welding is the most difficult test in the history of welding
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31:25
Soldadura (simulación de examen) 6g 6010/7010/7018
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16:10
Reparación en Pipeline South Texas
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46:17
How to fit and weld a 12x12 Branch Test Tutorial
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25:56
Biselado en Tubería de 6"
![](https://i.ytimg.com/vi/J-x4UckCneM/mqdefault.jpg)
14:03