HENGCHANG FASTENERS CO.,LTD ,founded in 1966 in yichang city, is the biggest manufacturer and exporter of washers and pins in mid-china.,such as spring lock washers,double spring lock washer,flat washer.cotter pins,split pins, spring pins, spring cotters, and lynch pins. It has more than 200employees and covers 20000square meters. The products are usually used in automobile industry. Some famous auto-makers have long businesses with them. For example,DONGFENG AUTO,the biggest national automobile group in china,took up 40% of all its selling in 2009.In 2010,their aim annual capacity is 10000T.As its up-class customers, the products must be controlled at a good condition. Since 2006,instead of the ISO9001, it has certificated the ISO/TS 16949 SYSTERM. In the past,the products were thought well abroad too.The company would like to cooperate with friends in the world, with their profess service and good quality.