單證員證書是哪個(gè)部門頒發(fā)的,有幾類,每年都要檢驗(yàn)嗎? ( 外貿(mào):做好貨了,客人之前也給了15%定金~剩下的貨遲遲不給余款!出不了貨~怎么催客人給定金啊! )
Dear Brett,How are you? It it a little long time no contact.Today is the beginning of August.Wish good luck to you and your family, your business.As some of our customers want to catch thel chances to...
