Inhaling of fly-ash over a long period causes« Back to Previous Page

A. silicosis B. fibrosis of lungs C. bronchitis D. pneumonitis Posted by Civil Engineer Asked on June 2, 2016 3:19 pm

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A. silicosis B. fibrosis of lungs C. bronchitis D. pneumonitis Posted by Neelmani Answered on June 7, 2016 2:12 pm