We are leading manufacturer in the brass check valve and gate valve in China. Through continuous improvement and development, FDH has been granted CE,ACS and ISO9001 certificate. Now we are applying for UPC and NSF approval for USA market. FDH is devoted to prompt FDH own brand all over the world, which takes up 40% sales amount. Fully automatic machines are imported from Taiwan and Italy in order to improve the quality and upgrade the production efficiency.