Maaddaama aan nahay mid ka mid ah kuwa ugu tartamada badan shirkadaha, goobayaasha giraanteenna oo dahaadhan ayaa waxay caan ka noqdeen adduunka oo dhan, gaar ahaan Waqooyiga Ameerika. Waxaana loo qaabeyn karaa si waafaqsan shuruudahaaga, tusaale ahaan, waxaa loogu qaabeyn lahaa caag, wax lagu dhejiyo ama gaashaan. Sidoo kale, waxaa jira daaweyn dusha sare ah oo aad dooratay: Pre-galvanized, Zinc plated, epoxy iyo Green galvanized finish si aad ula kulanto heerarkaaga kala duwan 'baahiyaha xinjirowga.