Automotive spark plug: 1:M18*1.5 20.8mm,10.9 hexagon 2:Delicate details 3:Long spark plug service life Automotive spark plug Features:(1)Multi-ribs of insulator eliminate flashover.(2)Insulator made of 95% pure alumina,strong resistant to heat shock,great mechanic and electric features,super insulation.(3)Nickel plated housing prevents oxidation and corrosion,heat crimping process ensures ...
