... 2000mm 3.Dielectric properties FR4 Laminate Sheet is a glass fabric reinforcement in an epoxy resin binder. The ... PCB drilling pads,fiberglass meson,potentiometer,carbon film,printed glass fiber,precision planetary gear (chip grind),precision test ... endurance parallel to lamination undernormal conditions ≥kV45Insulation resistance after impregnated in water ≥MΩ5×104Dissipation factor ≤50Hz:1MHz:- ...