I am curious to know the cost of maintenance. Industrial sized equipment is subject to severe corrosion [1], I am not sure if the cost is really one time. [1]

I am curious to know the cost of maintenance. Industrial sized equipment is subject to severe corrosion [1], I am not sure if the cost is really one time. [1] http://www.financialexpress.com/archive/corrosion-india-losing-rs-152-lakh-crore-annually/247576/ http://www.financialexpress.com/archive/corrosion-india-losi...