【正文】 可以提前償還，但需在_________個月前通知乙方。 　　第四條　計價貨幣和作價標(biāo)準(zhǔn) 　　雙方商品均用_________幣計價。 　　第五條　利息計算 　　甲方所開的遠(yuǎn)期信用證及乙方所預(yù)付貨款的利息應(yīng)由甲方負(fù)擔(dān)。 　　第六條　技術(shù)服務(wù) 　　貨物到達(dá)甲方口岸后，由甲方自行安裝，但在主要設(shè)備安裝過程中，甲方認(rèn)為需要時，乙方必須派出技術(shù)人員進(jìn)行現(xiàn)場指導(dǎo)，提供必要的技術(shù)服務(wù)，在此過程中由于技術(shù)上的問題，所造成的損失由乙方負(fù)責(zé)。在中國的一切費用均由乙方承擔(dān)。增訂的項目仍應(yīng)列入本合同范圍之內(nèi)。設(shè)備所有權(quán)在付清貨款后發(fā)生轉(zhuǎn)移，之后，如發(fā)生意外，損失先由保險公司向投保人賠付，再按比例退回甲方已支付的設(shè)備貨款。 　　第十條　履約保證 　　為保證合同條款的有效履行，雙方分別向?qū)Ψ教峁┯筛髯砸环姐y行出具的保函，予以擔(dān)保。 　　第十一條　合同條款的變更 　　本合同內(nèi)容如遇特殊情況需要變更，須經(jīng)雙方協(xié)商一致。 　　第十三條　仲裁 　　凡是有關(guān)本協(xié)議或執(zhí)行本協(xié)議而發(fā)生的一切爭議，應(yīng)通過友好協(xié)商解決。仲裁適用法律為_________國法律。仲裁費用由敗訴一方負(fù)擔(dān)。 　　本合同自簽字之日起生效，有效期為_________年。 　　甲方(簽字)：_________　　　　　　　　乙方(簽字)：_________ 　　_________年____月____日　　　　　　　　_________年____月____日 　　簽訂地點：_________　　　　　　　　　　簽訂地點：_________ 　　附件 　　party a: _________pany， china. 　　address:_________ 　　tel: _________ 　　telex: _________ 　　party b: _________ pany 　　address: _________ 　　tel: _________ 　　telex: _________ 　　article 1　introduction 　　(1)party b shall provide party a with _________machines of model _________to be used in with them shall also be provided various kinds of supporting machinery，accessories and spare parts it needs，and the various kinds of measuring and testing instruments required in the course of production，the specific models， names，specifications， quantity，unit prices，packing requirements and the deadline for delivery shall be specified in an additional contract to be made between the both parties，which will serve as a integral part of the contract. 　　(2)the total cost of the entire machinery and its supporting equipment shall be paid to party b of the part of the products and/or other modities produced by party a with the machinery supplied by party may also be paid to party b of (a certain product)turned ort by .(this practice is hereinafter referred to as a makeup payment).the specific names，quantity and unit price of the products to be delivered as makeup payment，and the deadline for delinery，are to be specified in an additional contract between the two parties on productssupplying as make up payment，which shall be the integral part of the two additional contracts mentioned above may be merged as one called buy and sell contract on pensation trade. 　　article 2　terma of payment 　　the two parties shall open a l/c in favour of each a shall open，at regular intervals，longterm l/c in favour of party b to pay in install ments the entire cost of the machinery and its support sight l/c in favour of {arty a as a payment for the cost of the products to be delivered by party a shall pay for the total cost of the machinery and its supporting equipment with the sum of money which party b shall pay the products to be delivered by party a as a make up case the money to be paid by pairy b is not enough to cover the value of the long term l/c is determined by the at siggt l/c opened by party b and its down payment as stipulated in the contract .party b grarantees to fulfil what is required of it to do as mentioned herein. 　　article 3　deadline for payment 　　party a shall pay the total cost of the machinery and its supporting equipment supplied by party b by delivering the products it produces to party b as a make rp payment on a month to month basis