Research & Development
Mantrafibertec
Material advantage
Resistance & bearing capacity
We've made our manhole covers extra strong by using super tough materials and a clever design. This means the cover fits perfectly on the well seat, creating a stable and secure connection. No more wobbling or weird noises – just a smooth, seamless fit that won't crack or budge, even during installation or everyday use. You can rest assured knowing your manhole cover is built to last!
Corrosion resistance
FOG (fat, oil, and grease) in the sewer system can create yucky hydrogen sulfide gas (H2S). That gas can turn into sulfuric acid, which sounds pretty scary! But don't worry, our covers are built to resist this acid rain from below and keep everything running smoothly.
Light weight and reduced risk
Say goodbye to struggling with heavy sewer covers! Mantrafibretec's innovative composite manhole covers are built to be lightweight, thanks to our clever bridge structure design that boosts compression resistance without adding unnecessary bulk.
High and low temperature resistance
Our SMC composite material can withstand extreme temperatures, from a scorching +150℃ down to a frigid -50℃. So, no matter where you live, these covers can handle it.
R & D and production mold
At Mantrafibretec, we understand that one-size-fits-all doesn't always cut it. That's why our incredible R&D team, with over 20 years of experience under their belts, is here to bring your custom manhole cover vision to life!
Cost-Effective Production
Because composite materials are abundant, and our one-time molding process is efficient, we can offer these high-quality covers at a lower manufacturing cost compared to cast iron.
Mantrafibertec
Our Products
