1. Of the judgment of the court of first instance, the part against Defendant C among the judgment of the court of first instance is modified as follows.

Defendant C, Inc.

1. The reasoning of the judgment of the court of first instance citing the reasoning is as follows. Paragraph (2) is the same as the ground of the judgment of the court of first instance, except for adding a judgment on the assertion newly adopted or emphasized by the Defendants in this court, thereby citing it pursuant to the main sentence of Article 420 of the Civil Procedure Act.

(except for the part regarding D). Of the reasoning of the first instance judgment, “Defendant D” is “D”, “Defendant D” is “D,” “Defendant D” and “C” are both Defendant C and D.

The 6th 15th 15th son of the first instance judgment “B” shall be added to “B” following the date of the first instance judgment.

In the 7th trial of the first instance, the “instant valve” in the 7th trial of the first instance means “the instant valve”, the 11th and 5th parallel “the instant valve” means “the instant valves”; the 14th parallel “the instant valve” in the 14th parallel means “the instant valve”; the 13th parallel, the 13th parallel, the 14th parallel, the 15th parallel of the 16th parallel “the instant valve” means “the instant valve.”

The 8th half of the first instance judgment “A” to “A” shall be written with “each description of evidence Nos. 9, 10, 16, and 21”.

The 10th instance judgment of the first instance court (“=271,758,000 won = 271,758,000 won”) is the “=271,758,000 won”.

The 11th instance court's 8-12th 10-12th 10-2nd 10 shall be followed as follows.

3) Defendant C has the duty to return the valves in the attached list 2 supplied by the above Defendant to the above Defendant, and the above Defendant cannot respond to the Plaintiff’s claim for damages until the said valves are returned from the said Defendant.

The fact that the Plaintiff received the above valves from the above Defendant is as seen earlier.

However, in full view of the above evidence and the purport of the whole arguments in Gap evidence Nos. 14 and 15, the purchaser in the contract terms and conditions attached to Gap evidence No. 15 are as follows.