... Sand casting+CNC machining +surface treatment 2.Material: Bronze, Copper,Brass3.weight:around 0.01kg-10kg4.Material available ... ductile iron, grey iron, alloy steel, aluminium, copper, bronze,brass, etc5.Application:Valve parts6:Workcraft :Precision casting, sandcasting, ... manufacturing equipment(foundy used)cupla,electric furnace,resin-bonded,dry sand mix miller, quake press molding machine, turning ...