sand casting products have good quality ,can make according to your ... etc .Perfect process and professionalservice ! 1. Material of sand casting products: DescriptionMaterialTechnical ProcessDuctile ironcastingsASTM A 536-Gr.60-40-18,etcDIN ... 150,180,220,etcNF FGL150,FGL200,FGL250,etcGreen-sand mouldingResin-sand mouldingLost foam castShell-core castElectric-furnace smelting sand casting products