Precision casting: precision casting is the most ancient of the metal
casting arts, and at the same time, among the most modern and versatile.
a wax pattern of the desired part is created. several identical wax patterns
are assembled onto a "tree" and invested in a suitable mold refractory.
the investment and drying process is repeated until a sufficient thickness
has been built up to withstand the molten metal. the wax is melted out of t
he mold, leaving a cavity the shape of the part. molten metal of the
selected alloy is poured into this cavity, producing the desired part in
metal.
We offer customers low price and good quality.
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wrought iron railway