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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Standards [CURRENT]

JIS D 4421
Method of hardness test for brake linings, pads and clutch facings of automobiles

Edition 1996-01-31

Original language English

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

JIS D 4421 Method of hardness test for brake linings, pads and clutch facings of automobiles

Want to learn more?

JIS D 4421
Method of hardness test for brake linings, pads and clutch facings of automobiles