... steel 2.standards:JIS,DIN,ASTM,BS 3.process: precision casting 4.Weight:0.2kg-30kg 1.Material: gray ... the customer’s drawing and requirements.5.Main products : precision casting ,sand casting.6.Manufacturing equipment: electric furnace, ... sand mixing machine, shot blast chamber, various mould machine, standing machine tool, machine tools, l miller, standing drill machine, bench drill machine, dry sand ...