Spark plugs models for most kinds gas appliancesCSA ,ROHS approved Insulators: 96% alumina OR Steatite,Polished or glaze Cables: Teflon FEP(200C 12KV),PFA(250C 12KV),PTFE(250C 25KV),Silicone(10KV 200C) ELECTRODE: AISI304(850C),OCr25Al5(1250C),Cr20Ni80(1200C),KanthalD(1300C) Kanthal A1(1400C)...