Grey iron casting (diesel engine block),FC25 or FC30,green sand or resin sand casting.castings ... or machined parts. Features to grey iron casting (diesel engine block): 1.Material :FC25 or FC30.2.Moulding processing:green sand ... range: from 90kgs up to 1800kgs.10.Representative product: engine block,housing,casing,pump body,cover,bearing stand,front frame,bolster.