Steel bar grating has two floor sort: serrated area and smooth surface area. Serrated steel grating is made of serrated steel bars, which can 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 https://jualsteelgrating49370.dgbloggers.com/30137142/jual-grating-bekas-options