The so-called domestic letter of credit means that the applicant opens a letter of credit to the beneficiary through the issuing bank, and the issuing bank guarantees payment to the beneficiary after the beneficiary submits the documents that meet the requirements of the letter of credit to the issuing bank.
The so-called commercial draft refers to the unconditional payment instruction of a certain amount issued by the buyer to the seller.
Comparing the three payment methods, domestic letter of credit is the best.