... , Square, Rectangular, Special. Commodity: Continuous Cast iron bar.Material: Grey iron bar, Ductile iron bar.Shape: Round, Square, Rectangular, Special. Round Square Rectangular ... .The section colors help clients to distinguish different grade iron bar.Our packing help clients to unload goods easily. Except export ... 400-15HBMCBar 450-12HBMCBar 500-7GRADE COLORORANGEGREENRED grey cast iron bar