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The main disadvantage is the overall cost, especially for short-run productions Some of the reasons for the high cost include specialized equipment,\ costly refractories, and binders, many operations to make a mold, a lot of labor is needed and occasional minute defects. However, the cost is still less than producing the same part by machining from bar stock; for example, gun manufacturing has moved to investment casting to lower costs of producing pistols Investment casting is used with almost any castable metal. However, aluminum alloys, copper alloys, and steel are the most common. In industrial use, the size limits are 3 g (0.1 oz) to several hundred kilograms. The cross-sectional limits are 0.6 mm (0.024 in) to 75 mm (3.0 in).
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