The Anatomy of a Great 출석체크: Revision history

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24 March 2025

  • curprev 18:2418:24, 24 March 2025‎ B6qygen698 talk contribs‎ 4,249 bytes +4,249‎ Created page with "™ Welding smoke is a mixture of very fine particles and gases. This smoke can contain, such materials as chromium, nickel, arsenic, asbestos, manganese, silica, beryllium, cadmium, nitrogen oxides, phosgene, acrolein, fluorine compounds, carbon monoxide, cobalt, copper, lead, ozone, selenium, and zinc and they can be extremely toxic. Generally, welding fumes and gases come from the base material being welded or the filler material, but can also come from the paint and..."
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