... Steel Grating 2. ISO9001:2000, CE 3. high quality low price 4.size:1*2m 3*30m... 5. Application: ... barcomes in the form of a plain surface flat bar, commonly used for platforms, trenchgratings, and stair ... manufacturer in China. We have 7 running lines with yearly capacity of 50,000tons. Jiulong grating and ... bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm2Bear bar pitch12.5, 15, 20, 23.85, 25, ...