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Hi everyone, this is the only channel in the KZbin of [Chengyang Electrical Circuit] ~ I am an ordinary electrician in Qingdao, Shandong Province. I have been engaged in 18 years of maintenance and installation of factories, equipment, families and various circuits to share knowledge of electricity consumption, maintenance process, various circuit maintenance example videos like my videos can be subscribed to oh ~ / @user-yg5yt2ni3x maintenance# vlog# circuit# repair# knowledge# encyclopedia will never charge money if it is not repaired, failure to do so is tantamount to running for nothing. Fortunately, I have a magic weapon! [Chengyang Electrical Circuit]# Electrical Maintenance