Steel Ball Seal Series Mode:715C Spray nozzle for Cooling Piston Steel Ball Seal SeriesMode: 715CApply to: Series of YND485ZC Diesel Engine, Series of Y4100ZL Diesel Engine, Series of YSD49ZL Diesel Engine, Series of YSD Diesel Engine, etc. Suitable for YANGDONG CO.,LTD HIGH QUALITY PERFECT PRECISON ZERO DEFECTSNantong Wiedson Fuel Injection Equipment Co.,Ltd. Spray Nozzle for Cooling Piston