... are recommended5> Maximum length of black panel:6,100 mm6> Surface treatment: untreated, paint or hot ... 80, 100Cross bar pith(mm)38, 50, 76, 100, 101.6Thickness(mm)3mm ,4mm, 5mmMaterialQ235,SS304,SS316Surface ... 516001490135015301420129014201320120032 x 519301790162018401710155017101590144040 x 5228021201920218020301830203018901700 floor grating,drain cover,trench grate,plain steel grating,walkway ...