... of steel grid plank: light weight, strong intensity, big load capacity, transmission and aeration, anti-skid Flooring galvanized steel grating ... plate/steel grid plank Features: manufactured according to customers' requirementsFor ... 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. US standard: 1"x3/16", ...