That^.
You'd need to braze-in some bosses, the tube won't be thick enough to be tapped. You could ask Mario Vaz to sort it, he has a repairer who could presumably do this no problem.
@Skülly started
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That^.
You'd need to braze-in some bosses, the tube won't be thick enough to be tapped. You could ask Mario Vaz to sort it, he has a repairer who could presumably do this no problem.