... )Weight:5g-20kg;Dimension:5x5-200x200mm Brass Investment CastingMaterial and EquipmentsMaterial:various kinds of brass,copper alloy,for example CuZn39Pb2,CuZn40,CuSn7ZnPb ... ,C95500,CuSn12Ni2,HPb59-1,HPb58-3 etc.. Casting:Silica sol lost wax casting(precision casting,investment casting),Sand casting Machining:CNC,four-axis milling center,Vertical ...