All payment will be made upon presentation of seller's invoices against one or more irrevocable Letters of Credit issued or confirmed by an internationally recognized bank acceptable to seller.

所有付款将在卖方出示与由国际认可并由卖方接受的银行开立的一个或以上不可撤销信用证一致的装货单后支付。

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The Chinese company called the seller to dispute the inaccuracy of the invoices, but never documented this in writing.

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