Refractory manufacturer / supplier in China, offering CT Ball Tube Ceramics Alumina Ceramic Tube 99 Al2O3 Metallized Ceramic Tube Metal Brazing, Glazed 95% Alumina Ceramic Tube Insulator Sleeve Al2O3 Electrode Igniter Pipe, Glazed 95% 99% Alumina Ceramic Ignition Tube Al2O3 Electrode Pipe for Igniter and so on.