It called for a custom-made insulator with provision for cooling air flow. It had to be a precision fit in the housing, Here is the result of extrusion followed by grinding.
Ceramic Oxide Fabricators (Australia) | Industrial and Scientific Ceramics
Since 1971 we have been manufacturing and distributing high-tech ceramics for science and industry. Our products are used for abrasion, corrosion, and electrical resistance, laboratory ware, and ...