(a) Contract number of the goods contract, including a purchase contract between the Plaintiff and the Defendant: Category C/Contract number: X-RAY / Product name: X-type 1/Quantities: Delivery period on November 30, 201 / Delivery Place: Jin-ray 1EA, D unit (each 1EA), and defect warranty period: Special engineer for one year:

2. Details of special conditions for the quality control of a purchase contract shall be as follows:

Article 18. Period for Repairing Defects: Attached documents of one year.

6. Special conditions for quality control of the purchase contract for goods] Article 18 (Special Conditions for Repair of Defects) (1) The other party to the contract shall be from the date of delivery under Article 11 (the date the trial operation is completed, in cases of a condition precedent contract for trial operation) (hereinafter referred to as "liability period for defects").

(3) When the public official in charge of contracts or the head of the quality control group finds that the standards and quality of the supplied goods are different from those of the contract, he/she may notify the other party to the contract of such fact and request the return of substitute supply of the goods or the price of the goods concerned. (4) When the other party to the contract is notified of the defect repair, he/she shall immediately perform the maintenance work or substitute supply, and all the expenses incurred therefrom shall be borne by the other party to the contract. (5) If the other party to the contract refuses the defect repair as requested by the public official in charge of contracts or the head of the quality control group, or fails to complete the defect repair or substitute delivery of the goods within the prescribed period after the notification of the defect repair, etc., he/she shall return the price of the relevant goods to the relevant end-user institution.

8. Purchase specifications] Purchase specifications of explosive treatment equipment (the list of items of equipment subject to class 2 acquisition, such as X-RAY filmers, 1 X-RAY.