Founded in 1993 and located in Yuhuan county of Zhejiang province Roadge Machinery Co.,Ltd.has a history of over 10 years in professionally manufacturing and developing trailer parts for the axles,air brake systems of trailers, heavy-duty trucks and carriages for European,American, Japanese and South Korean market.The high-quality products of Rodage mainly include: manual & automatic slack adjusters for European,American, Japanese, and South Korean market;brake s-camshafts and repair kits;spring brake chambers; brake shoe assemblies and repair kits;air brake valves; quick release valve assemblies;quick couplings assemblies;high-strenth bolts and nuts,etc,nearly one thousand sorts and more than a dozen of series. As the largest worldwide manufacturer of slack adjusters, Roadge has an annual output of 1,000,000 sets of trailer components ,among which 80% are exported and 20% are supplied for OEM manufacturers in China.Our products have been enjoying good reputation in the circle of heavy-duty components both at home and abroad. Now,we have over 300 emplyees, among whom over 40 are senior and junior expert technicians.Besides,Roadage attaches much emphasis to the quality of products as well as the management. On the basis of the quality standard ISO9001,Roadage also consummated the TUV of Germany:TS16949 in February 2006.Our goal is to be a worldwide trailer components consolidated supplier.