Teachers of Hangzhou Gaobo Education always meet students asking such questions, because the rate calculated by man-machine in the bidding quotation rate adopts labor+machinery during the reporting period, while the bidding control price adopts fixed labor+machinery. In the pricing rules of Zhejiang Province? The costs calculated by man-machine in the construction cost of Jian 'an project include: construction organization measures, temporary funds for winning the bid for the chemical plant, fees, enterprise management fees, profits and Jian 'an project fees, which are all necessary knowledge points for cost practitioners.