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