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A gold bar, also called a gold ingot or gold bullion, is a quantity of refined metallic gold of any shape that is made by a bar producer meeting standard conditions of manufacture, labeling, and record keeping. Larger gold bars that are produced by pouring the molten metal into molds are called ingots. Smaller bars may be manufactured by minting or stamping from appropriately rolled gold sheets. The standard gold bar held as gold reserves by central banks and traded among bullion dealers is the 400-troy-ounce (12.4 kg or 438.9 ounces) Good Delivery gold bar. The kilobar, which is 1000 grams in mass (32.15 troy ounces), is the bar that is more manageable and is used extensively for trading and investment. The premium on these bars when traded is very low over the spot value of the gold making it ideal for small transfers between banks and traders. Most kilobars are flat, although some investors, particularly in Europe, prefer the brick shape. ==Types== Gold bars are classified into two different types, cast and minted, based on their method of manufacturing. Cast bars are made by pouring molten gold into an ingot mold to shape the gold product. Minted bars are made from gold blanks that have been hand cut to the required dimensions from a flat piece of gold. Markings are almost always applied by presses. Image:Kinebar3.jpg|1 oz diffractive kinebar Image:Chinesischer_Goldbarren.JPG|Imperial Chinese sycee Image:2oz gold Engelhard.JPG|A 2oz 99.99% pure Engelhard poured gold bar 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Gold bar」の詳細全文を読む スポンサード リンク
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