old warning sign on vehicle with tank for flammable liquid background. transportation of flammable and combustible liquids. color

acid attention bio cargo caution chemical chemicalhazard danger environment explosion explosive fire flame flammable flammableliquid fueltank gas hazard hazardous hazardousmaterials hazardwarning hazmat industry lab label logistic orangeplate pollution protection risk safety set sign solids substances symbol tanks toxic transportation vehiclestanks warning warningsign