... plants and steel boiler steel. System metallurgical plants, railway bridges, airport hangar, port machinery, high-rise buildings, civil ... Gr8, A307Surface: SELF COLOUR, BLACK,ZP,YZP,H.D.G, DACROMENTMaterials:high quality carbon steel (C1015,C1035, ... , UNF, BSWFinishPlain, Galvanized, Black, Nickel, Chrome, H.D.GPackingCarton, Box, Bag, PalletQuality AssuranceISO 9001Our bolts and assembly products ...