Summary:
1. More convenient: it's easy to open and repair by pushing up and down.
2. Flexibility: can be slanted with different cover plate, not affected by t......
1. More convenient: it's easy to open and repair by pushing up and down.
2. Flexibility: can be slanted with different cover plate, not affected by thickness, and suitable for groove modeling.
3. Arbitrariness: since this manhole is not affected by the mold, any size can be customized without high cost of abrasive tools and quantity limitation.
4. Good quality: made of aluminum alloy, light weight, strong bearing capacity, no rust, not easy to deform.
5. Easy installation: the manufacturer has drilled holes around the frame profile, which saves installation cost.
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