7.5 if the third test again fails， and if party b is responsible for the failure，party a has the right to terminate the contract at its discretion and lodge claims asstipulated ih article9.if the responsibility for the failure lies with party a， the twoparties shall negotiate as tohow to further implement the contract.article 8 technical improvements
8.1 if the technical documents provided by party b are not applicable to party asactualproduction condidions (such as design standards， raw materials， purchased partsfor the ma-chine， production facilitie)， party b is obliged to assist party a inmodifying the technicaldocuments and confirm the same. upon the condition that theproperties of the contracted products are not affected， raw materials， fittings andequipmint of chinese origin may be used.
8.2 during the currency of the contract. if eithet of the two parties effets improve-ments on or developments of the products within the xcope stipulated in the contract，thd said party shall submit， free of charge， to the other party the technologicalinformation con-cernign such improvements or developments.
8.3 the ownership of such improvements on or developments of the ontracted productshall belong to the party who has effected such improvements or develpments. the otheparyt shall not apply for patent ortransfer the same to any third arty.article 9 guarantees and claims
9.1 party b guarantees that the technical& nbsp;documents to be supplied by party b are thelatest technical information which has been put into practical use by party b. party balso undertakesto supply to party a in time the technical information relevant to anydevelop-ment of or improvement on the contracted product.
9.2 party b guarantees that the technical documents to be supplied by party b arecom-plete，correct，legible and are to be despatched in time.
9.3 if the documents suppied by party b are not in conformity with the stipulationin article 6， party b shall， within the shortext possible time but not later than 3odays after re-ceipt of party as written notice， despatch free of charge to party athe missing or the cor- rcet and legible technical socuments.
9.4 if party b fails to despatch the said documents within the stipulated period asper appendix 2 party b shall pay penalty to party a in the following proportions:
（1）percent of the total contract price for delay from 1 to 4 weeks.
（2）percent of the total contract price for delay form 5 to 8 weeks.