Min. Order Reference FOB Price
500 Sets US$1.00-4.00 / Set
Product Description
Product Description Features Material Intake valve 40Cr10Si2Mo, Ezxhaust valve 53Cr21Mn9Ni4N. Oem Quality Made for original engines of the first level motorcycle manufacturers. Treatment All models with treatment of quenching, tempering, nitridation For additional information and models, ...