... , 40, 60mm, of which 30mm & 40mmare recommended. 3)Cross bar pitches can be 38, 50, 60,100mm, of which 50mm ... T700 steel 6)Application: flooring, catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, ... of width of bearing bar. Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the ...