#프리액션밸브 #작동원리 파헤쳐보자
Video Statistics and Information
Channel: 3분소방안전
Views: 139,248
Rating: undefined out of 5
Keywords: #프리액션, 프리엑션, 프리액선, 프리액션벨브, 프리엑션벨브, 프리엑션밸브, 작동점검
Id: FdFkqJl2_F8
Channel Id: undefined
Length: 9min 54sec (594 seconds)
Published: Fri Jul 17 2020
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