Zhuji Changrong Machinery Co.,Ltd is specializing in the production of Changrong series pipe connectors for automobiles and auto air pressure brake hose assemblies. Our products are TS16949, ISO9001:2002, DOT, TUV approved. We have been in this field for more than 15 years. we have many regular customers in Poland,New Zealand, Germany, Russia,Saudi Arabia etc.We will supply you our high quality products with competitive price.We are glad to be your reliable supplier