Steel bar grating has two area form: serrated surface area and clean surface area. Serrated steel grating is made from serrated steel bars, which may be low carbon steel bars, aluminum steel bars and stainless steel bars. one. Steel Grating dengan thirty mm bearing bar pitch sering digunakan untuk keperluan https://cashwyvhi.designertoblog.com/61209617/jual-grating-bekas-an-overview