electro-slag refined (ESR) steel

steel (cold steel)

Equivalent Series Resistance (ESR)

electro-explosive device (EED)

electro-optic/infrared (EO/IR)

electro-optical countermeasures

electro-optical sensor

electro-optical system

electro-optics

electro-technical equipment

electro-optical warfare system

electro-magnetic contamination

electro-optical glide bomb

electro-optical / infra-red (EO/IR)

electro-optical / infrared payload (EO/IR payload)

electro-optical systems (EOS)

electro-optical (EO)

appliqué steel armor

caterpillar steel track

cold steel/ weapon

high-strength steel

homogeneous steel casting

single-strand, high-strength, spring-steel wire

steel bar

steel core

steel helmet

steel obstacle

steel shaft

steel spheres

all-welded cast steel turret

anticorrosive barrel steel

armor steel door

armor steel fuel tank