the word "However" could be wrong
What I talked with CEH is that the all pieces will be exposed to normal wear and corrosion. However the useful life is mainly based on the chemical composition immersed in the water so to extend and ensure longevity the fabricator recommends sand blast and touch-up rich in zinc every year and a half.
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the word "However" could be wrong
What I talked about with CEH is that the all pieces will be exposed to normal wear and corrosion, however, the useful life lifetime is mainly based on the chemical composition when immersed in the water, so to extend and ensure longevity, the fabricator recommends to sand blast and touch-up rich in zinc touch it up with zinc every year and a half.1. la vida útil = lifetime
2. touch-up is a noun, touch it up is a phrasal verb
Nice job! I guessed in a couple parts. One is "when immersed in water". If you mean that the chemical composition changes when it's in water, then that is how you would say that. The other is "touch it up with zinc". If you mean you have to use zinc to touch it up, then that is how you would say that.
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