Steel bar grating has two floor form: serrated area and clean floor. Serrated steel grating is made of 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://cashkzabz.bloggerbags.com/34924550/a-secret-weapon-for-jual-grating-galvanis