... ,000tons/year 5.First-class flooring and platform steel grating panel 1) Bearing Bar (Load Bar) Specifications (mm):The specification of ... client's requirement and 30, 40, 60mm are recommended, America standard is available <1'' x 3/16'', 1 1/4'' x ... to client's requirement and 50, 100mm are recommended, America standard is available. 4) Material:Mild Steel (Low Carbon Steel) or ...