... 4-Factory detrict.delivery in time Products Description Engine Valve guideMaterail: Power metallury,alloy cast iron, heat- ... , Corrosion resistance 1.Application: ISUZU,HINO,NISSAN,TOYOTA,HONDA,MITSUBISHI,SUZUKI,LEXUS,MAZDADAEWOO,HYUNDAI,KIA,VOLVO, ... .Participating in drafting internal combustion engine valve seat specification(JB/T), andInternal combustion engine valve guide specification (JB/T)4 ...