[待更新] LP Hoying, LLC, an international provider of cathodic protection power supplies, designs, manufactures, and sells a wide variety of photovoltaic power supplies, rectifiers, and other equipment for cathodic protection. We also conduct on-site educational seminars covering basic electricity, corrosion control basics, as well as solar power supply and rectifier maintenance.ty of photovoltaic power supplies, rectifiers, and other equipment for cathodic protection. We also...