| 11. | Personal eye protection - automatic welding filters ; german version en 379 : 2003
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| 12. | All position automatic welding of pipe one - side welding with back formation
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| 13. | Semi - automatic welding
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| 14. | Automatic welding shop
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| 15. | The - state - of - art of production and application of solid welding wire for carbon steel automatic welding
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| 16. | Bearing housings welded to the tube by precision self centering automatic welding machines
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| 17. | Lots of controlling indications are designed inside . it is convenient for automatic welding and robot welding
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| 18. | 407 we can perform the pipe by following operations : cutting and mechanical chamfering , manual and automatic welding
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| 19. | 407 we can perform the pipe by following operations : cutting and mechanical chamfering , manual and automatic welding
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| 20. | Application of pipeline automatic welding and fully ultrasonic inspection technique in west to east gas transmission pipeline project
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