ASTM A53/A53M - 12

Zinc - A chemical element, a silver metal. Corrosion resistant. Combined with Copper makes Brass

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Steel - An alloy made predominately of Iron combined with <2% carbon

hot - An indication of the temperature being high and a sensation of heat to the tough

Specification - A description of a product with the details of its attributes.

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