Sand Casting Iron Parts with Grey Cast Iron Casting 1.HT2501.Material:grey/ductile cast Iron 2.cast iron 3.OEM service avail Sand Casting Iron Parts with Grey Cast Iron Casting Specifications:Accuracy: according to the dimension tolerance of machining of customer's requirement.Surface roughness: Ra0.8-3.2Weight:ranging from 0.2-100KGSurface treatment: polishing, anti-rust painting, chrome-plated, ...