Hangzhou dunpai chain general factory, the forerunner or Hangzhou dunpai chain co.,Ltd,belong to DONGHUA Chain group company.Through the hardwork of several generations of the company’s worker and more than 50 years’ development, our company has made a splendid history. Our company has won the national’May Day’award.08B-2.10A-1 roller chain. which are the leading products of dunpai chain' have
won the national silver medal again and again since 1980. 16A-1 roller chain also won the national silver medal in 1980. 06B-1, 08A-1, 12A-1, 16A-1 won the name of high quality product or Zhejiang province.