Yuhuan Huayang Machinery Co., Ltd. established in 2001,Website:http://www.jhysparkplugs.com, have been focusing on providing spark plugs for more than 18 years and always in the future. We are one of the professional manufacturers producing spark plugs, which are mainly used to the gasoline engine, oil & gas dual fuel engine and natural gas engine including auto cars, motorcycles and any kind of engine, with more than 6,000 OE numbers including resistor type, platinum type, iridium type, iridium-platinum type, natural gas type and so on.