silicon-manganese steel

multilayer aluminum-silicon oxide-silicon dioxide combination

steel (cold steel)

silicon co-pilot

electron-bombarded silicon

high quality silicon

laser-activated silicon controlled rectifier

light-activated silicon switch

liquid-crystal-on-silicon

metal-oxide-silicon

metal-oxide-silicon integrated circuit

metal-polymer-silicon

metal-silicon-nitride-semiconductor field-effect transistor

silicon bilateral bidirectional switch

silicon fluids

silicon micro machine

silicon-based microcircuit

silicon-controlled rectifier

laser-activated silicon switching

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