... size:500nm Far infrared emissivity :0.87~0.91 package:25 kg per bag Application of nano far infrared ceramic powder:*It is ... widely used in cosmetics, health products, manufacture of ceramics, paper, wood, medical, ... mA/kW)«0.50.0093.4Electric Strength50Hz,1500V test voltage is applied across the basis insulation for 1min, no breakdown ...