1. Insulator multi-channel ribs prevent flashover on the surface.
2. Used 95 alumina ceramic insulator, the performance in thermal shock, mechanical electrical and insulation reliability is good.
3. Nickel plated housing prevents oxidation and corrosion, heat crimping process ensure absolule Gas-tinght fit.
4. Inner sealing with conducive glass ensure a fine condutivity and sealing performance.
5. Multi-layer gaskets are elasticly strong and reliable in sealing.
6. Copper core electrode prevents axidation and corrosion, and ensure good electric and heat conducitivity, long spark plug service life.