... 4.size:1*2m 3*30m... 5. Application: construction Steel GratingFlooring galvanized steel grating is the most widely used.We have 7 running ... bearing barcomes in the form of a plain surface flat bar, commonly used for platforms, trenchgratings, and stair treads. Ningbo ... :NoItemDescription1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm2Bear bar pitch12.5, 15, 20, 23.85, 25, 30, 30. ...