Fiber reinforced thermosetting composite materials based on unsaturated polyester resin, also known as bulk molding compounds (DMC), are made using compression molding technology and are a new type of environmentally friendly cover plate. The composite manhole cover adopts high-temperature and high-pressure one-time molding technology, with high polymerization degree, high density, good impact resistance and tensile strength, and advantages such as wear resistance, corrosion resistance, no rust, no pollution, and no maintenance.

Product features:

1. High strength: It has high compressive, bending, and impact resistance, as well as toughness. After long-term use, this product will not cause the manhole cover to be crushed or damaged, and can completely prevent the occurrence of "urban black hole" accidents.

2. Appearance Beauty: Exquisite surface pattern design, bright and adjustable colors, beautifying the urban environment.

3. Easy to use and lightweight: The product weighs only about one-third of cast iron, making it easy to transport, install, and repair, greatly reducing labor intensity.

4. No recycling value, natural anti-theft: According to customer needs and equipped with a locking structure, it achieves anti-theft of property in the well.

5. Strong weather resistance: The manhole cover can be used normally in environments ranging from -50 ℃ to+300 ℃ through scientific formulas, processes, and advanced technical equipment.

6. Acid and alkali resistance, corrosion resistance, wear resistance, vehicle crushing resistance, long service life.

Product Usage:

1. With the rapid development of urban and rural construction, the demand for manhole covers, which are supporting facilities for new residential areas and roads, has increased sharply. However, traditional cast iron manhole covers have high costs, serious theft, pedestrian injuries, and vehicle damage, which have always been a problem that troubles various construction departments.

2. Composite manhole covers are mainly made of unsaturated resin as the main chemical raw material, which is modified by compounding various materials. After molding, they not only have high strength and beautiful appearance, but also have good electrical insulation performance, waterproof, anti-aging, acid and alkali resistant, high strength, impact resistance, wear resistance, not afraid of sun and rain, anti-static, anti-theft and other characteristics. They are an ideal substitute for cast iron manhole covers.