... large-scaled constructions-workshops,bridges,ships,elevating machinery.equipment founation,support,foundation pile and so on. ItemHollow steel beamOrigionSHANGHAIStandardGB, ASTM, ... deposit by T/TApplicationslanger-scale building, bridges, shipbuilding, machinery, foundation and so on.MarketOur products have been all over the ... item is interesting to you I beam steel metal construction materials