... used by : ItemComponent Square handrail square tube, connector and bottom,ect. Round handrail. round tube, three-connect, elbow, bottom,ect. ... Mix handrail square tube, round tube, connector, ect. Chemical ... FRP grating can be used as Walkways,Fencing,Racks and shelving,Wash racks,Scaffolding,Drainage pit covers Stairs,ect ...