ZHEJIANG ZHONGDA GROUP TYRE LIMITED IS an Subsidiary company of HangZhou ZhongCe Rubber Co.,Ltd. HangZhou ZhongCe Rubber Co.,Ltd.is the largest bicycle tyre manufacturer in China and the top 3 enterprise among Chinese tyre industry,it's also the 24th largest tyre manufacturer worldwide. The company has also passed the ISO9001:2000 quality system certification and received DOT approval from the U.S.A. and ECE certificate from the Europ- ean Economic Community etc.CHAOYANG brand and ORNATE brand bicycle tyres are sold well throughout the wrold. We can supply agriculture, passenger car, light truck, heavy-duty truck, radial tires and bicycle tires etc. Hope all of the friends and customers come and develop our business.