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Lifting bollards are vertical posts that can be raised or lowered to control vehicle access to certain areas. They are typically made from durable materials such as steel or aluminum and feature hydraulic or electronic mechanisms for operation. When raised, bollards act as barriers, preventing unauthorized vehicles from entering controlled zones. Conversely, they can be lowered to allow access for emergency vehicles, public transport, or pre-approved individual vehicles.

The applications of reef channel grates extend beyond urban drainage systems. They are also utilized in parking lots, roadways, and public parks, wherever the management of stormwater runoff is necessary. The strategic placement of these grates reduces the volume of runoff entering drainage systems, ensuring that water is absorbed gradually by the surrounding soil.