... . Energy saving; Environmental protection 4. Long live power control panel:1. Energy saving: heating efficiency can reach above 98%, ... emission, no pollution, no noise, can significantly lower the temperature of the environment.3. Long life: using electromagnetic heating coil ... TG,FR4 Halogen Free,3Board thickness0.2mm-3.5mm4Max panel size630mm*520mm5Min.drilled hole size0.5mm6Min.line width0.075mm( ...