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Proprietary Technologies

ONEX has focused exclusively on the metal heat treatment field since its founding in 1951. Over the past half century, we have built up a solid rapport with our customers, having become an approved or certified plant for various automakers, such as Rolls-Royce, and construction equipment manufacturers and compliant with Japanese Industrial Standards (JIS), Nippon Kaiji Kyokai (NK) and military standards (MIL). In recent years, we have moved into the ion plating field and now offer coating services for various parts, including industrial tools. This represents our ceaseless commitment to be Japan's foremost integrated heat treatment provider.

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