VG1-1: Nozzle ring Casting vanes VG1-1-CNR: Nozzle ring Casting vanes Push rod carbonnitriding VG1-1M: Nozzle ring Mahcined vanes VG1-1M-CNR: Nozzle ring Machined vanes Push rod carbonnitriding VG1-1M-CN: Nozzle ring Machined vanes
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