The Recoilable-Belt Rail with plastic base , also referred to as "one meter line" in China, is a retractable isolation rail extensively applied in banks, hospitals , metro and other public places.

A loader is a type of construction equipment (engineering vehicle) machinery that is primarily used to "load" material into another type of machinery (dump truck, conveyor belt, rail-car, etc.).

The combined highway guard rail board can be used in a narrow central separation belt.