IRIDIUM SPARK PLUG DIX-ZFR5-11 :Our own brand NPL spark plug is of full range: Resistor spark plugs, iridium spark plugs, platinum spark plugs, toroidal multi-Electrode spark plugs and so on. In recent years, We newly develop the alloy technic, which makes the ignition of spark plug more quick and precise, and have a big help for the great power of the engine. And we apply for the newest technology on iridium spark plugs, which already achieve a good name on the quality in China, Euorpe, USA and Middle East
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