Steel bar grating has two surface variety: serrated surface and easy surface. Serrated steel grating is fabricated from serrated steel bars, which can be reduced 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://hargasteelgrating51493.uzblog.net/details-fiction-and-jual-steel-grating-43909785