同年12月，陆先生就购买厂房的细节与房屋所有权人的家属林某进行磋商后，于当天通过银行转账汇款20万元作定金。
In December of the same year, Mr. Lu negotiated with Lin, a family member of the house owner, about the details of the purchase of the plant, and remitted 200,000 yuan as a deposit by bank transfer on the same day.