right unit meaning in Chinese

右单位元

Building droit is mutual , need to refer mutual person to agree with the written opinion that offer ; 2 , id of buyers and sellers or other and valid identification ; 3 , the contract of public housing business that sells person and property right unit to sign ; 4 , betray what person and vendee sign to already bought contract of public housing business
房屋所有权为共有的，需提交共有人同意出售的书面意见； 2 、买卖双方身份证或其他有效身份证实； 3 、出卖人与产权单位签订的公有住房买卖合同； 4 、出卖人与买受人签订的已购公有住房买卖合同。