catwalk steel grating/industrial catwalk grating

Catwalk steel grating    Manufacturer of high quality steel driveway grates grating --- Anping Huijin steel grating factory the shape of steel cartwalk grating:plain,serrated,I-shape catwalk steel grating bearing bar pitches can be 12.5mm,15mm,20mm,30mm,30.16mm,32.5mm,34.3mm,40mm,60mm.of which 30mm&40mm are recommended. catwalk steel grating cross bar pitches can be 38mm,50mm,60mm,100mm,of which 50mm&100mm are recommended. catwalk steel grating surface treatment:Hot-dipped galvanized,paint or other anti-crossive coatings are available,of which hot dipped galvanized is generally recommended. catwalk steel grating material:Q235 in line with GB/T700 steel catwalk steel grating tolerance:the allowed deviation of length is +0/-5mm,while the allowed deviation of widht is +/-5mm. the non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.   catwalk steel grating