... Ohio, Charttle, LA, MiddleEast, AUS, Europe and Southeast so on. UsageThe steel walkway grate is widly ... plant, water plant, defense project, chemical factory and so on.common size The sizes 6meter x1 meter ... bridge,refinery ,power plant,Sewage treatment plant and so on.Grating Description:1) Bearing bar specification ... of bearing bar can be plain, serratted and I bars.5).Material can be Q235,SS400,A36( ...