... , 2,easy to clean and attractive appearance. Made of steel grating, the fencing has advantages such as artistic, high ... electric power plant, railway, highway, sewage treatment plant, waterworks, mine, steel, petrochemical, wharf and airport etc. 1) Steel grating: Bearing bar size ... cement column on site.3) Enclosure Form: B indicates steel grating enclosure and short-form shows no enclosure.4) Surface ...