... grating Fast delivery,7-30 days Welded steel grating: 1.) Processing technic: steel grating is made by bearing bar and ... cross bar according to the flat-steel weft arrangement, in high-pressure spacing on resistance welder ... the platform, footpath, zhanqiao pier, ditch lid, manhole cover, ladders, fences, guardrail etc. 4.)Material: Carbon steel, Stainless steel , and so on . 5.) ...