Steel bar grating has two floor kind: serrated floor and smooth surface. Serrated steel grating is made from serrated steel bars, which may be reduced carbon steel bars, aluminum steel bars and stainless steel bars. one. Steel Grating dengan 30 mm bearing bar pitch sering digunakan untuk keperluan location field. https://jual-grating-galvanis62603.blogdeazar.com/29878899/jual-grating-bekas-options