Letter of credit at sight with days validity or from top World Bank, Irrevocable, Transferable, Confirmed,100% and follow single follow ring Letter of Credit payable at sight.

• 信用证应由国际一級的银行机构开出,不可撤销,可转让的,可分割的,保兑的,100%25即期跟单循环信用证见票即付。