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[MW:35852] Earthing on Pipeline API 5L PSL-2 X52

By Materials & Welding
Dear experts 
I need clarification do we can provide earhing on weld mental, during welding of Pipeline Material API 5L PSL-2 X52 with the help of help of sharpened Rebar,
Kindly explain with code & technical reference.
Thanks & Regards
Alex

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