TT steel grating is manufactured using an electro-forgewelding process that applies
pressure and heat to fuse square, twisted cross bars into
load-bearing bars of various thicknesses and depths.
The result is a product of one-piece construction that complies
with AS1657-2013.
The press welded galvanized steel grating/grille/grate is made of
load flat steel bar and cross bar, placed horizontally and
vertically, and at an equal pitch apart, by welding with 200-ton
hydraulic resistance automatic welding equipment, then cutting,
punching and banding ends.