1. The Defendant shall pay to the Plaintiff KRW 25,987,610 and the interest rate of KRW 20% per annum from April 11, 2015 to the date of complete payment.

1. Comprehensively taking account of the purport of the arguments in Gap evidence Nos. 1, 2, and 3 as to the cause of the claim, the plaintiff entered into a contract with the defendant on December 1, 2014 with the content that the plaintiff shall use and supply steel materials supplied by the defendant for melting year, and shall be paid with 400 won/km, and the contract price shall be settled at ten days after deducting the construction price from ten days to ten days. Accordingly, the plaintiff can be acknowledged that the plaintiff supplied the goods equivalent to 25,987,610 won from January 31, 2015 to March 5, 2015. Accordingly, the defendant is obligated to pay the plaintiff the above contract price at the rate of 25,987,610 won and delay damages calculated at the rate of 20% per annum from April 11, 2015 to the day following the day on which the original copy of the payment order of this case was served.

2. 피고의 주장에 관한 판단 원고가 용융아연도금하여 납품한 물품에 파이프휨, 핀홀 및 도금 잔재, 균일하지 못한 표면 등 하자가 발생하여 피고가 이를 보완하기 위하여 줄질 및 그라인더작업 등으로 순수 인건비로 27,501,960원을 지출하는 손해를 입었으므로, 피고의 원고에 대한 위 손해배상채권으로 원고의 위 공사대금채권과 상계한다는 취지로 주장한다.

However, there was a defect in the goods delivered by the Plaintiff to the Defendant only with the descriptions of the evidence Nos. 1, 2, 3, 8, 9, and 10

It is not sufficient to recognize that the defendant suffered a loss equivalent to the labor cost as alleged above, and there is no other evidence to prove otherwise.

Therefore, the defendant's above assertion is not accepted.

3. In conclusion, the plaintiff's claim is justified, and it is so decided as per Disposition.