‘The chemical industry manufactures a wide range of products, from heavy chemicals and explosives to pharmaceuticals and photographic supplies.’
‘A close examination revealed that the sandstone was compromised by decades of relentless emissions and by early restoration attempts that might have used sandblasting or heavy chemicals.’
‘Throw out anything laced with heavy chemicals.’
‘The actual work involves stripping the tub, which requires heavy chemicals to do so.’
‘Instead of using heavy chemicals and trying to force it out, we take the time needed.’
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