... oil refinery,iron or steel works,machine factories,paper mill,cement mills,medicine plants and foodstuff factories,for uses ... and dimention 2.applicable steel equipment 3.excellent quality of steel grating 4.reasonable price1)Bearing bar pitches may ... of surface-treatment;G-hot galvanizing(may be omit-ted in the symbol of the steel grating)P-PaintedU-Untreated Industrial park ,Anping,County,hebei,China ...