... Frames 5) Roof Wall Materials Product Name:Cultural corridor for the Great Hall of the People The project presents fan ... ,installation of metal doors and windows,all kinds of materials for steel structureRegistered Address: No. 27, Linhai Road, Zhenhai, Ningbo, ... -up welded H-section , hot-rolled H-section, channel, steel column, steel beam),standard frames, secondary framing, roof & wall materials, ...