Spark Plugs for Chainsaw, Lawn Mower and Brush Cutter, OEM Orders are Welcome Materials: 95% pure alumina insulator ... logo printings are acceptedOEM orders are welcomeApplications: chainsaws, brush cutters and garden instruments enginesMaterial: 95% pure alumina ceramicNickel copper ... core center electrodePearl or ti-coated metal shellColor and multi-electrode: white, red, yellow, orange, blue, black ...