提单签发日后15天内dhl空运发货单及卖方的陈述指明1/3(三份正本提单中的一份)提单正本已递交给买方;

• DHL Shipment Airwaybill issued within 15 days from the B/L date and Seller's statement showing the delivery of 1/3 original B/L to the Buyer;