The gratings can be manufactured with different type of framing.
Open outline of grating may be bounded frame and its usage is advisable and desirable.
To framing is using profiled bands from same materials, what gratings are made. Most of bands are fastened together by welding. Also U- and T-profiled bands may fastened together mechanically.
Mainly for border bands is using the same steel bar as bearing bar.
Mainly to framing is using the same material, which is used for bearing bars.
Band, T- and U-profiled band
Notch on bearing bar
We may also use a combination of materials.
NB! The data provided is informative. Specify the exact specification with the supplier.