Kobunshi Keiki, a manufacturer of hardness testers and other testing equipment, exhibited at the Automotive Engineering Exposition 2026, held at Pacifico Yokohama from May 27 to 29, where it showcased the Japan‑made IRHD micro rubber hardness tester MI‑7 for the first time. The MI‑7 is a fully automated measuring instrument compliant with the international rubber hardness M‑method specified in JIS…
