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List of products by brand Teikoku Piston Rings

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TPR's direct ancestor is Gentaro Tanaka Shoten Co., Ltd., set up in 1908 by Gentaro Tanaka.


TPR is based on the key words behind our Corporate Philosophy, management attitude and guiding principles: "Technology" "Passion" "Reliance". In that name is our determination that "with unmatched technology and passion we will attempt to create valuable products to answer our customers' reliance on us".

TPR rings are characterized by high strength, dissipate piston heat into the cylinder and regulate the oil film on the cylinder surface which leads to long-term maintenance of adequate compression in the combustion chamber.