引擎的火花塞F7TC

engine spark plug F7TC 1.Multi-ribs of insulator eliminat flashover. 2.Insulator made of 95% pure alumina,strong resistant to heat shock,great mechanic and electric features,super insulation. 3.Nickel plated housing prewents oxidation and corrosion,heat crimmping process ensures absolute gas-tight fit. 4.Inner sealing with conductivity glass ensures a fine conductivity and sealing. 5.Multi-layer gaskets are elasticly strong,and reliable in seaing. 6. Copper core electrode prewents oxidation and corrosion,good electric and heat conductivity. 7. long spark plug service life. 8.Customer's samples and drawings are accepted. 9. Available in various sizes and colors. Inquiries are welcome.