... 3.long using life 4.free samples electrical conduit fittings Material: Iron,Brass,Stainless steelProtection rating: ... -tight flexible conduits and metal hose, conduit fittings, as it has been for over 10 years ... fittings have been used in electric power plant, industrial facilities, wire harnesses, machine , instrumentation, telecommunication equipment, and automobiles etc. electrical conduit fittings ...