Steel bar grating has two floor sort: serrated area and easy surface. Serrated steel grating is crafted from serrated steel bars, which may be small carbon steel bars, aluminum steel bars and stainless steel bars. Steel grating adalah sejenis baja terbuka dengan bantalan bar dan palang silang yang disatukan den... https://jualgratingsurabaya95947.losblogos.com/29228667/examine-this-report-on-grating-steel-galvanized