Dear Sir,
Is it mandatory to use cooling water GMAW machines? if yes i hope to mention the code/specification or any handbooks that recommends this and state the values of ampers for that?
or we can use oil cooling GMAW machines
As per ASME B31.3, Clause 331.1.6 (b): Any required PWHT shall be carried out in accordance with the qualified WPS. For furnace PWHT inv...
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