Steel bar grating has two surface sort: serrated surface and easy surface area. Serrated steel grating is fabricated from serrated steel bars, which can be minimal carbon steel bars, aluminum steel bars and stainless steel bars. Steel grating ialah plat baja yang di bentuk persegi dan bentuk dalamnya kotak – https://johnathanzoonk.therainblog.com/29045305/a-review-of-grating-steel-jual