/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: MohamedKhaled34 https://public.slidesharecdn.com/v2/images/profile-picture.png I am preparing technical courses in different electrical power branch (PLC, Automatic control, electrical safety, transformers, power generation, transmission & distribution, grounding systems and cathodic protection, switchgear and more. Training material is ready for friends for free.