[MW:21499] Welding Process Change ( From SMAW to GMAW)

Hello Expert,

 I am seeking your technical advice in terms of Welding process.

For welding of crane girder  we are using SMAW welding with root and hot pass DPT.

 Now people want to change the welding process from SMAW to GMAW. (but root with SMAW)

Plate thickness ranging from 25 mm to 50 mm.

Please give your advice, 

Your prompt action will be highly appreciated

Regards

Aakash

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