... plastic welding torch Material:95%Al2O3,Steatile,cordierite Colour:white,Ivory,yellow ISO9001 Ceramic Insulator for hand extrudersFeatures: low heating power ... Ceramic/porcelain Insulator for welding machinesMaterial:95%Al2O3,SteatileColour:white,Ivory,pink,yellowISO9001 Ceramic Insulator for plastic welding torch