... ×3,50×7×4, 55×7×4, 60 ×7×4, 65×7×4, 70×7×4, 75×7×4(2) Bear ... : Untreated, painting or Hot-dipped galvanization.Related products: Steel bar grating, Mild steel grating, Stainless steel grating, Galvanized steel gratingfeature and use: strength, cost-efficient production and ...