Party A: Unite smooth computer Co., Ltd. in Guangzhou Party B: Beautiful diamond jewellery company Second direction Party A purchases one group of computers today, both parties, according to the commitments of such regulations as " contract law of the People's Republic of China ",etc. and a contract, consulted by both sides, agree to sign a contract, observe together. The following specific contract. First, purchase the name of product, price and demand. 1, the computer that Party B orders disposes (see enclosure one; The computer is single in device layout) The total amount of money is yuan; Capitalize: Yuan. 2, both sides agree on first second: Party A take charge of installing, debugging this batch of machines. 3. Originally criticize the installation site of the machine . 4, Party A is at the request of Party B, install the daily software of various kinds of computers for this batch of machines. The specialized software needs Party B to offer, Party A bear the corresponding quality of machine protect, quality both sides consult and solve the problem together after duration of insurance. Second, confirmation, after-sale service and quality of the products are protected 1, Party A supplies according to the disposition that both sides agree on, Party B, according to disposing and accepting the goods only, according to agreeing on one to be begun to install and debug by technological engineer of Party A after confirming by Party B the quantity of the products. 2, Party B pay after the deposit by regulation according to contract, Party A one work in a few days until contract sign, finish machine rigging up and debugging. 3, confirm the qualified standard: All products parts are parts of the agreement of the contract enclosure, the complete machine system runs normally. 4, after confirm qualified, Party B have suggestion right to system, Party A can carry on according to suggestion of Party B corresponding to change. 5, Party A offers the following quality to protect to the products offered: Quality problem Party A of the hardware appears to offer service of maintaining, changing etc. in quality duration of insurance, Party A guarantees that if have quality problem of the hardware to solve in three dayses, such as exceeding three days, offer the spare part. 6, damage artificially and it is products hardware products that quality problem cause that be used normally, Party A will not free quality protect, but Party A guarantees to be responsible for offering relevant services, therefore the expenses produced are undertaken by Party B. 7, contract this is it come into force to sign once, first second both sides act in accordance with it strictly, if first second both sides have change of geographical position, copies of contract appointed geographical position too corresponding to change. Settle account at third, payment for goods. 1, after the contract is signed, Party B pays goods deposit yuan whole to Party A at first. 2, Party A gets all goods ready, is it handle and agree on advance payment yuan after not confirming to Party B by Party B the same day to supply in Party A. 3, surplus fund yuan, computer rigging up and debugging confirm by Party B qualified the day after tomorrow pay off. 4, terms of payment: , the cash is paid; , pay payment for goods to Party A account number of appointing. 5, terms of payment agreed on to this contract, Party B should guarantee to carry out unconditionally, the term of payment and amount of money that this contract agrees on, do not have any association with quality of item and maintaining and after-sale service. Party B can't pay or defer payment few with any reason. 6, if Party B defers payment, add 5% which should pay the payment for goods of that month as the penalty every day. 7, if Party B is in arrears with the payment for goods of Party A for more than 20 days, then Party A has the right to handle Party A to offer all computer equipment of Party B.