many sign dangerous area flammable gas safety shoes wear helmet not use mobile phones entry fire ignition |
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| navigate by keyword : alert allowed area background black blue button call cigarette circle communication danger dangerous distracted entry equipment fire flammable gas green helmet icon ignition illustration image information label light mobile not phone prohibited red restricted safety shoes sign smoking stop symbol technology telephone text use wall warning wear white |
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| Many sign in dangerous area, Flammable GAS, SAFETY SHOES, WEAR HELMET, DO NOT USE MOBILE PHONES, NO ENTRY, NO FIRE IGNITION, NO SMOKING on white wall background |
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