1. High strength: magnesite inspection, with high compressive, bending and impact strength, and toughness. After long-term use, the manhole cover will not be crushed and damaged, which can completely prevent the occurrence of "urban black hole" accidents.

2. Beautiful appearance: The surface pattern of magnesite inspection manhole cover is beautifully designed, the color is bright and adjustable, and the urban environment is beautified.

3. Easy to use and light weight: The weight of the product is only about one third of that of cast iron, which is convenient for transportation, installation and emergency repair, and greatly reduces the labor intensity.

4. Anti-theft: Magnesium inspection manhole cover has no recycling value, and natural anti-theft; according to customer needs, it is equipped with a locking structure to achieve anti-theft of property in the well.

5. Strong weather resistance: The magnesite inspection manhole cover can be used normally in the environment of -50℃~+300℃ through scientific formula, advanced technology and perfect technical equipment.

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