siping tread tire

siping tread tire: Полимеры: шина со щелевидными прорезями в рисунке протектора

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Siping — is a process of cutting thin slits across a rubber surface to improve traction in wet or icy conditions.There is a story told on various websites that siping was invented and patented by John Sipe Fact|date=April 2008 in the 1920s Sipe worked in… … Wikipedia
Traction (engineering) — Traction refers to the friction between a drive member and the surface it moves upon, where the friction is used to provide motion.For the purposes of driving a wheeled vehicle, high friction is generally desired, as it provides a more positive… … Wikipedia

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