... time:7-25 days 4.top 100 companie Steel Grating is used in power plants,chemical plants ... ,oil refinery,iron or steel works,machine factories,paper mill,cement mills, ... style(may be committed in the symbol of steel grating)S-serrated styleI-I-section style4) ... ted in the symbol of the steel grating)P-PaintedU-Untreated Industrial park ,Anping,County,hebei,China Steel Grating