... ,refineries,Sewerage Treatmentplants,Grain Silos,Chemical Plants and as Trafficable Drain grates and stairtreads.Description:1) Bearing bar specification: 20 x 3 ... ,paintFields of ApplicationPlatforms ,sidwalks,filter grates,ventilation grates,driling stages, ladder steps,ditch grates,fences,framedgrates,trash rack grates ,paint backing chambers…… [Super Deal ...