... grating 1. ISO9001 2. Type: Plain,Serrated,I-bar mild steel grating galvanized steel grating floor grating ProductsManufacturing Process Main Market85% of ... etc2Bearing Bar Pitch12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, ... GradeASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self colour, hot dip galvanized, painted, spray ...