automatic release mechanical firing head

combination firing head

hydraulic firing head

pressure firing head

sure-fire firing head

tripped firing head

100p% firing level

concentrated firing

computer-aided firing system

compressive strength after firing

composite firing

Command Firing System

combustion furnace with firing at miffle portion

Combined firing the coal and blast-furnare gas

combined firing

Combination firing

coincidence firing gate

coal firing sets

coal firing power plant