... 25X5…..40X6, 40X8, 40X10,….90X6….Pitch of Load bearding flat bars(mm)12.5,15, 20, 30, 30.6, 32. ... 34.8, 35.3, 40, 60, 80……Pitch of cross bars(mm)38.1, 50, 50.8, 70, 75, 80, ... not limited to above.1.4 Grating type: Serrated I type,with square twisted cross bar.1.5 Finishing ... Japan, Germany,Switzerland,etc.4. Capable design can make grating customized according to site requirement. Steel Grating_Serrated ...