c is a type of manhole cover crafted from a composite material known as resin plastic. Here’s what you need to know about this type of manhole cover:
- Material: Resin plastic, also known as composite resin, is a durable and lightweight material composed of a mixture of resin (such as polyester or epoxy resin) and reinforcing fibers (such as fiberglass or carbon fiber). This combination results in a strong and corrosion-resistant material that can withstand heavy loads and harsh environmental conditions.
- Characteristics: Manhole covers made of resin plastic offer several advantages over traditional materials like cast iron:
- Lightweight: Resin plastic is significantly lighter than cast iron, making it easier to handle.
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