Using one size nomal bearing bar,stainless steel,brass sheet,alsht with notch or holes,interdigitalled,sealing-in,finishing etc.ways to be made out interdigital steel grating.so that mean interdigital steel grating contains all most all specialties like:highly strong of nomal bearing bar,anitspetic,no need repairing and also beautiful figure,so they are used for fitment,flat roof,walkway,louver and billboard.

 Interdigital steel grating types