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Ceramic Insulation Tube Single Bore Alumina Porcelain High Temperature Insulator Pipe for Heating Element - AliExpress

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1mm Inner diameter single bore aluminum Aluminous porcelain ceramic tube. * 1000V Insulation, high corrosion resistance, scratch proof and Good

Uxcell 1mm Dia Ceramic Insulation Tube Single Bore Alumina Porcelain Pipe 50 Pcs