fireproof material definition
fireproof material means a material capable of withstanding heat as well as or better than steel when the dimensions in both cases are appropriate for the specific purpose;
fireproof material means a material capable of withstanding heat as well as or better than steel when the dimensions in both cases are appropriate for the specific purpose; identification plates of fireproof material include plates made of metal or other fireproof material of suitable physical properties.
fireproof material means a material capable of withstanding heat as well