New Delhi, April 1 -- Twenty-two years ago, I began addressing silicosis in India's ramming mass industry, driven by my father's experience of witnessing its devastating effects in our family's factory, Carr Glass Works, in Kolkata and Osaka, Japan. Ramming mass is a mixture of fine silica dust particles that have a size smaller than 500 Mesh and granules of 40, 30, 24, 16, 8, and 4 Mesh, produced by manually breaking, milling, crushing and disintegrating quartzite stones/rocks that contain 98.9 to 99.5 per cent silicon dioxide. It is widely used in the production of refractory materials, which can withstand high temperatures and chemical corrosion, making it essential for furnace linings and other high-temperature resistant/control appli...