【正文】 hods, contract period, factors such as the purchase price payment, in accordance with international practices, norms flexibility in pricing and practices. (3) Project bidding prices Project bidding form of price bid. Mainly in the calculation of bottom three categories: construction design stage, based on a fixed budget。 the other is also necessary to establish and perfect the internal procurement audit system, the implementation of the decisionmaking power, the implementation of the right to examine the right of separation of powers, and so on, in order to effectively control the project cost. ⑸ works bidding claim of price controls is another important task Project bidding price controls, another feature of the project claims management. Legal and contract claims is the legitimate right to give, we should establish a claim for awareness, attention to claims, at the claim, establish a sound mechanism for claims management. The current estimate of the budget management system used by the budget settlement add more visas for the design of variable practice, is a practice after the accounts, and project bidding prices to form contracts for design changes, ultrawide contract workload, unforeseen costs, force majeure and other losses caused by breach of contract claim form should be adopted to safeguard their own interests. Bidding the project, therefore the claim has its own unique laws, is a kind of revenge after the first work, a good current account balance or margin accounts work again while the dynamic control method to work. Require the contractor to have a strong business sense, straight from the conclusion of the contract to carry out the end, always seeking to expand the fundamental purpose of econo mic efficiency。 another method is an integrated unit. We know that many projects are in the preliminary design or expand on the preliminary design stage to start the tender, so the preparation of estimates based on a fixed bid to a certain extent to avoid double counting Lack of project or errors, and ensure the accuracy of results, but the use of the budget scale must be accurate and effective. In order to adapt to the needs of bidding, all engineering consulting panies, professional associations, government departments can be, under the guidance of the whole country in 2021, the provincial Construction Commission the preparation of the fixed and the construction of fixed, housing repairs, decoration fixed, municipal fixed basis item attributable to the merger will be some major item in the preparation of the fixed budget. This can greatly simplify the preparation of bid workload and save time. Enterprises can also be fixed in the budget on the basis of the cost of the merger, the abolition of admission fees category, into a petitive rate. Both will be indirect costs, management fees, profits and other business costs petitive and national statutory tax rate of all costs are included in each unit, not separately calculated and integrated unit method both. This bined with the enterprise has accumulated a database of projects, in accordance with changes in market supply and demand, government and munity advisory body to provide price information and price index and other factors, can be further shortened the time of preparation of the bid to achieve higher accuracy, for the use of the puter Quick Quote create the necessary conditions. Future business categories to reflect the quality of business, mainly for panies to measure the corresponding type of construction work undertaken. In order to improve the project bidding price petitiveness, in the preparation of construction anization design to reflect the advanced labor productivity, we must strive to reduce the indirect construction time, idle waste of time, to reduce and eliminate the design changes, construction rework time error. In addition to avoid the invalidity of construction machinery idle, reducing the area of temporary facilities, reduce inventory, improve the utilization of funds, and so on. 3, project bidding prices, the effective control of Bidding for the project is very risky for the contractor, the decision to respond to tender documents, preparation of tender documents produced risk. In the tender price risk from time to time, prices of nonsuccessful, do not throw items off of the successful bidder, once the successful bidder may have the risk of loss. During the construction process there is always risk factors, changes in market prices of risk, design risk, the risk of material procurement, construction management risk and so on, until the pletion of the project, qualified acceptance, project, quality guarantee full recovery, personnel, construction machinery base security to withdraw or transfer to another project site, the risk of this project finally disappear. Therefore the works will not be bi