PU tire (Solid pu tire, Pu filled type) it is free of air inflation, abrasion proof, anti-corrosion, harmless even in nail pric PU tire (Solid pu tire ... , Pu filled type)1)it is good in resillience and can be ... )it is resistant to water, oil, dirt, acid and alkali. PU tire (Solid pu tire, Pu filled type)