Simply put, the account is the data directly recorded by the operator from the machine records during the operation, so it is called the account.
That is, the original source of equipment operation record data and accounting.
2. Establish accounts receivable ledger according to each contract, including the following contents: contract number, nature of the customer's enterprise, main business scope, registered capital, project establishment, project land certificate, construction land planning, contract amount, commencement and completion time, contract settlement method, contract payment terms, warranty period and warranty amount, monthly and cumulative progress amounts reported internally, monthly and cumulative progress amounts approved by Party A, and monthly and cumulative payment amounts approved by Party A, etc.