the usual way to repair tubular handles like that, depending where the break is is to insert a heavy section tube inside the original for some length either side of the break. drill the original handle with half a dozen holes either side of the break so you can plug weld through to the inner suporting tube, then simply weld round the break in the tube and tidy up with a flep wheel on a grinder. very strong and hopefully invisible with a drop of paint. 35c handles are renound for rotting, so finding replacements will be difficult
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