... slip and safe, 2 easy installation,sturdy and durable, ventilated Steel Grating /Steel grid 1) Light weight, great load-bearing capacity, non- ... transportation, municipal, administration, parking lot etc.3) steel grating may be applied to platform, floor, walkway, stair treads, trestle, fencing, drainage, trench cover ... (MBG531-88)UK: BS4592-1987Australia: AS 1657-1985 terrace Steel Grating(walkway)