Procurement and installation of the elevator is required to audit, there will be a second audit. Procurement of elevators, in accordance with the procurement invoice, according to the bid evaluation method to determine the winning product, price, etc.. However, the audit is required regardless of the type of expenditure and revenue.
For the purchase of elevator equipment installation is completed, after acceptance of the words, it is not necessarily to audit, and in the units do not have a consistent requirement must be done, subject to the actual situation.