... the heavy duty warehouse steel rack:1.Frame and Beam Material:Bao steel SS4002.Beam adjustment: ... of upright, beam, standard base plate, bolts and nuts, along with our catalogue.5. Are we ... factory has totally 30,000 square meters and has more than 300 workers and staff, that allow us to ... Our pallet racking, long span shelving, cantilever racking and rivet shelving, drive in rack, steel mezzanine sell ...