房屋买卖，不动产买卖，公司出售、购买。
产品责任的概念也被运用于不动产买卖的案件。
Products liability concepts have also been applied in cases involving sales of real property.
“按揭”起源于英美法，主要指不动产买卖中债的一种担保形式。
"Mortgage", which origins from the British and American law, mainly refers to one kind of security form of the debt in the property buying and selling.
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