An it not be welded?
Move on, so many new guns for reasonable price. Why even fix a broken gun? Be very careful about the safety if you try to weld parts back, it's a lot of pressure firing the gun, you don't want it to fly apart when you shoot. There usually a reason the gun broke, too many round went through it is one of them. Even if you fix this one, other new problem might show up later.CZ 97b. Two broken barrel bushings, two broken barrel lugs, now the slide broke right behind the thin spot at the extractor.
CZ USA has no more spare slides as they aren't made anymore, worn't warranty as it's been modified (1911 bushing conversion).
Posted on three different boards, nobody has a spare slide.