30%T/T in advance as deposit,and 70% balance upon delivery.

问题描述:

30%T/T in advance as deposit,and 70% balance upon delivery.
另外后半句是 balance 30 days from b/l date 啥意思?

70%余款交货时付款.
余款在提单日期30天付款,意思就是签出提单后提单签单日期30天后付款.