Hi All,
My question must be very easy for you,
In B31.3, What mean procedure qualification by Others, precisely Others ? Who is considered as Others ?
Thanks for you supports
Hello All,
I have a question about the B31.3 and B31.12.
I would like to know the mainly difference concerning the welding ? Are there any supplementary requirements with B31.12 ? (about WPS/PQR/fabrication)
Thanks a lot for your support,
Best Regards