✔ 最佳答案
L/C 係信用證,由買方經銀行發出,銀行在L/C的有效期內收到供應商提供L/C上列名的所有文件後,如所有文件相符....稱為單證相符 OR CLEAN單....會代買家向供應商付款..
L/C at sight = bank confirms 係clean單後立即付款 ....一般document processing time about 4-10 days
L/C 30/90...to as long as 180...等於給bank/supplier一個數期.....bank confirms係clean單後再根據相關期限付款