Beijing Dayu Holy Valve Co.,Ltd. It was established in 1999. which is located in Yufa industrial distric in Daxing,Beijing. Now the company covers 30.000square meters. It is civil forces. science and technology enterprise producing high-quality valves. The company first time adopted the quality certificate of ISO9001 of UKAS and RAB May 2000 and in 2003 it smoothly got the quality certificate of ISO9001 in 2000 edit.Butterfly valve is our company's characteristic products.
