Answer:
The following are the Hazmat products warnings that are allowed:
Fully Regulated Aerosol Placard
Fully Regulated Flammable
Fully Regulated Flammable Solid Placard
Lithium-Ion/Metal Battery label
Explanation:
Hazmat products are substances and materials that are dangerous and poses a risk to people when stored, handled or transported from one location to another at any given time.
Those products are meant to be handled with utmost care, and any carelessness on the individual in question could lead to harm. For example, regulated flammable liquid like kerosene needs utmost care when stored to avoid causing fire outbreak in the location where it is stored.