User contributions for B6qygen698
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A user with 1 edit. Account created on 24 March 2025.
24 March 2025
- 18:2418:24, 24 March 2025 diff hist +4,249 N The Anatomy of a Great 출석체크 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..." current
