acetylene ethyne molecule used oxy welding |
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| navigate by keyword : acetylene ethyne alkyne acetylen c2h2 unsaturated welding torch oxyacetylene flame molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula blackboard chalkboard chalk written writing drawing background ring line skeletal flat icon stylized style |
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| Acetylene (ethyne) molecule. Used in oxy-acetylene welding. Chalk on blackboard style illustration |
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