Ceramic Insulator for plastic welding torch Material:95%Al2O3,Steatile,cordierite Colour:white,Ivory,yellow ISO9001 Ceramic Insulator for hand extrudersFeatures: low heating power, long life ... StrengthkV/mm20Open Porosity%0Dielectric Constantεr10Dielectric Loss Angletanδ0.001 Ceramic/porcelain Insulator for welding machinesMaterial:95%Al2O3,SteatileColour:white,Ivory,pink,yellowISO9001 ...