Miss insurance trip; find fault fear repair on-site! [Chengyang Circuit] 

Hi everyone this is [Chengyang Electrical Circuit]]
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I am an ordinary electrician in Qingdao Shandong Province and I have been working for 18 years.
Maintenance and installation of factories equipment homes various circuits
Share electricity knowledge maintenance process various circuit maintenance examples video
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repair# vlog# circuit# repair# knowledge# encyclopedia
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