Housing is a special kind of commodity, the transaction to buy a house construction, land, finance, guarantees, contracts and other areas of expertise and legal knowledge.

房屋是一种特殊的商品，交易买房子建设，土地，金融，担保，合同和其他领域的专门知识和法律知识。

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This category excludes securities dealers and commodity contracts dealers, but includes other sellers of financial contracts and could include portfolio managers and those who provide trust, fiduciary and custody services.

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