As a China supplier of trench drain, we're focusing on the drainage systems all the time.
On the exhibition of IFAT,we found a few world famous companies start to offer the polymer concrete catch basin with the big sizes, as similar as the traditional precast concrete catch basins.
The advantages of the precast catch basins are with the cheaper prices, easy to manufacture on site if they're large and really heavy.
The advantages of the polymer concrete products are more stronger, the smooth inner surface.
It's upon the requirements to the projects to choose the two plans.