Flammable sign

Flammable signs are a type of warning sign and these warn us of the presence of a flammable gas or liquid this sign means that the substance can easily catch fire if exposed to a source of ignition, so we must be very careful if we have heat nearby. 

Where can we find it?

This sign can be found in many places such as trucks transporting such materials, construction materials, bottles with fammable substances and pipes.