And specialy the pu tyre do not need to pncumatic forever . the pu tyre can be extensive used in bicycle , wheelchair , handcart and every kinds vehicle of low speed 该轮胎可广泛用于各种低速运行的车辆上，如自行车轮椅车手推车和特殊环境下使用的各种工程车和工具车。
We had developed new production of pu tyres in 1992 , and we had passed appraisement of provincal . the pu tyres had been placed in " torch plan " of the state , and had been gotten the state patent . the pu tyres have many advantage difference to tranditional and pneumatic rubber tyres , so they were extensive uesd in bicycle and wheelchair . the technology performance of prodrction had reached international advanced standard . for many years , the polyurethane flat - free tyres pu tyres were exported a large number to europe and american , and they are favorably received by the clients of home and abroad 1992年研制开发并通过省级鉴定的新产品聚氨酯无充气轮胎被列入国家级火炬计划产品，并获得国家专利。该产品以其不同于传统的充气的橡胶轮胎的优越性能而广泛用于自行车轮椅车工具工程车等方面。产品的技术性能达到国际先进水平。
