1). Multi-ribbed insulator eliminates flashover, 2). 95% pure alumina insulator, 3). Strong resistance to heat and shock, 4). Great mechanic and electronic features, 5). Superb insulation, 6). Nickel plated housing prevents oxidation and corrosion, 7). Heat crimping process ensures absolute air-tight fit, 8). Inner sealing with conductive glass ensures a fine conductivity and seal, 9). Multi-layer gaskets are strong and reliable, 10). Copper core electrode prevents oxidation and corrosion, 11). Good electricity and heat conductivity, 12). Long spark plug service life.

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