Steel Chainwheel HeBei HuaYu Bicycle Co.Ltd is specialized in manufacturing Bicycle crank,hub,chainwheel,brake system presently.it will be our pleasure if we could help you in bicycle parts business . Yours Sincerely HeBei HuaYu Bicycle Co.Ltd Address:Lujia tun industrial zone,GuangZong county,XingTai City,HeBei Province Jackie Jiang,Sales Manager Tel:0086-0319-7265283 Fax:0086-0319-7265828