... process:Green sand casting,shell sand casting,resin sand casting,auto sand casting line2. Material:Grey iron,GG15,GG20,GG25,GG30 ... GGG70.En1596 EN1563,ASTMA159,and etc3. Molding:Hand made/Half auto made Auto casting line4. Possile Heat Treatment:Normalizing.5. Industry Involved ... based on clients’drawings and these parts are used by auto accessories,train parts,valve gate fitting,pipe fittinf and so on ...