请将下列句子翻译成中文: 1.Any dispute arising out of or in connection with this Contract shall be settled through friendly consultation. 2.It is mutually agreed that the certificates of quality and quantity or weight issued by the Manufacturer shall be part of the document to be presented to the paying bank for negotiation of payments. 3.Full information as to prices, quality, quantity available and other relative particulars would be appreciated. 4.So far, all our purchases from you have been paid by confirmed, irrevocable letter of credit. 5.If there is any delay, the seller will immediately notify the buyer of the delay and the reason for the delay.