Liaocheng Hongyu Metal Co.,Ltd is a professional manufacturer and exporter for washers. The company is located in the biggest industrial park of Shandong Province---Zhengjia Industrial Park of Liaocheng city.Our fndactory was found in 1994 and covers an area of 1500square meters. Our main products cover flat washer,sping washer and punching hardware. We make washers according to DIN standard ,ANSI standard,JIS standard,B.S standard and GB standard. About the non-standard washers,we also can supply as customer's requirement. Now our output is over 400 tons per month. With short delivery time, we save nuch time for our cooperated customers. Hongyu Metal would like to cooperate with friends all over the world,with their professional service and good quality .