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T IG W el d i ng i s gener al l y regarded as a sp eci al i zed p rocess tha t requi res
operato r com petenc y. W hi l e m any of the p r i nci pl es outl i ned i n th e pre vi ous A rc
W el di ng secti on a re a ppl i cabl e a com prehensi ve outl i ne of the T I G W el ding
process i s out si de th e scope of thi s O pe ra ti ng Manual .