技术服务协议(39)

　　3.7　part of the know - how transferring fee would be paid to part b by part a as per clause 3.1. during the joint - production period， and the unpaid part would be converted as the investment of part b to the joint - venture when the joint-venture comes to realisation. should the joint - venture miscarry and the joint- production be forced to terminate within 5 （five） years， part a shall confirm that the unpaid part of the know - how transferring fee shall fully be remitted to part b by part a. in each of the above - mentioned cases， evaluating the mode of payment of the know - how transferring fee shall be agreed upon by both parties through consultation in due course.
article 4 joint- production andcompensation trade
　　4.1　for the purpose of balancing part a' s foreign exchange， part b agrees to buy - back the medium speed marine main engines of type 12v- 400zc and 12v- 600zc produced by part a.
　　4.2　the total value of the above mentioned orders shall not be less than _________% of the expenses for purchasing components by part a from part b. part b agrees that under the prerequisite of increased compensation capability of part a and increased demand of part b the percentage of payments compensated through the back - sale of pite's products can be increased without limitation.
　　4.3　products supplied to part b by part a shall be at favourable prices， types， quantity， and delivery time of the products shall be agreed in the contract for every order by both pareties. quality of part a's products has to meet part b's standard.
　　4.4　part b shall require part a to start the trial production of medium speed marine main engine of type 12v - 400zc immediately upon receiving their drawings. the first products， one for each party， shall be tested separately by both parties and part b shall， on the basis of satisfactory tests， require part a to deliver_________（ _________）sets of medium speed marine main engine of type 12v- 400zc within 19 _________. the prices and delivery periods shall be agreed upon when the contract is concluded.