... QC,material big product capacity fast delivery precision grab part machining:1) Materials: grey iron, ductile iron, malleable iron, ... Standard: JIS, DIN, ASTM, BS, AISI3) Weight:0.1-5000kg4) Processes: sand casting process, investment casting process (silicon ... (machine shop used): numerical control lathe, vertical type CNC machining center, boring machine, universal miller, standing miller, vertical ...