нержавіюча ствольна сталь
steel (cold steel)
anticorrosive
anticorrosive additive
anticorrosive coating
barrel assembly (barrel group)
automatic heavy barrel rifle / heavy barrel automatic rifle
appliqué steel armor
caterpillar steel track
cold steel/ weapon
electro-slag refined (ESR) steel
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
armor steel door
armor steel fuel tank
carbon gun steel
hard steel plug
gun steel alloys
steel-tube framework
welded steel-tube framework
silicon-manganese steel
neutron-resisting boron-composite steel armor
axis of the barrel
barrel
barrel bomb