6 Metal guardrails; metal guardrail and end terminal posts; metal highway safety equipment, namely, guardrail terminals, metal anchor terminals for roadside and median barriers, guardrail end terminals, and double-sided median guardrail terminals; metal highway safety devices comprised of vehicle energy absorbing systems, namely, crash attenuator guardrail terminals and crash attenuating terminal systems comprised of metal members; crash cushions made of metal; traffic safety equipment, namely, sign posts made of metal; metal cable barriers for use on roadways; vehicle attenuating terminals, namely, a system comprised of metal members at the end of a guardrail; highway guardrails and highway safety systems, namely, truck-mounted and non-truck-mounted attenuated metal highway crash barriers; vehicle crash barriers made primarily of metal; highway crash protection cushions made primarily of metal; crash barriers made of metal for roads; vehicle arresting devices, namely, metal crash barriers; anchorless crash cushions made of steel for use as vehicle crash barriers for roads