Hebei Hankai metal clad wiper seals
In crowded urban environments, optimizing space is crucial. Folding parking bollards allow property owners to maximize their usable area. When access is not needed, the bollards can be easily folded down, providing more space for pedestrians or additional parking. This functionality is especially beneficial during events or busy periods when more room is required. The ability to quickly adjust the configuration of space helps improve traffic management and overall accessibility.
parking bollards folding

Two major materials used for the construction of manhole cover are cast iron and concrete. These two materials are also used in combination with the construction of manholes. Both the materials are durable, heavy and inexpensive. With technology, manhole covers are made from fiberglass, plastic, and composite.