소방전기공사- 수신기와 충압펌프 결선방법 및 작동원리
Video Statistics and Information
Channel: 영민한아빠
Views: 20,022
Rating: undefined out of 5
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Id: ZZjHCYX8K88
Channel Id: undefined
Length: 11min 23sec (683 seconds)
Published: Sat Dec 05 2020
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