【答案解析】① The seller sends the documents to the bank where the Credit is available. ② After checking that the documents meet the Credit requirements, the bank makes payment. ③ This bank then sends the documents to the issuing bank. ④ The issuing bank, after checking that the documents meet the Credit requirements, makes reimbursement. ⑤ The issuing bank then sends the documents to the Buyer. ⑥ Reimbursement is obtained in the pre-agreed manner.