Problem 종류
Multiple Choice
• Views 1818
• Comments 0
• Created at 2 years ago
• Last Updated at 1 year ago
변압기 철심용 강판의 규소 함유량은 대략 몇[%]인가?
Subscribe to see the correct answer.
1
4
2
2
3
7
4
3
Login to write a comment.