How can i create a continuous quad mesh from a non manifold polysurface?

Rhino Rhino for Windows
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consulta
consulta1028×5953 469 KB

here is the file in case you want to check it out
helpinrhino.3dm (689.4 KB)

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Is this different from
"Why I can’t do a boolean union in this case? "
-Pascal

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At the end, I couldn’t do it manually, i mean, trimmin and joining, and doing non manifold merges. Neither i could do it piece by piece on autocad, i don’t if im explaining myself well in this last one.