Nippon Piston Ring (NPR) Performance Parts
NIPPON PISTON RING CO., LTD. was e stablished 1934 and is headquartered Saitama, Japan. Piston rings, cylinder liners, valve seat inserts, camshafts, valve rocker arms, fuel injector parts and synchronizer rings.
NPR products are widely used in all kinds of engines due to their high quality backed up by proven technology and an abundant line-up.
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