CHINA YONGJIA GREATEWALL VALVE CO., LTD. Was founded in 2004.It located in Anfeng Industrial Zone, Oubei Town, Wenzhou, China,where is the China Pump & Valve hometown.We have more than one hundred empolyees ,including 4 engineers ,5 QC and QA.And we have a professinal ball machining workshop,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion,top entry,metal seat,full welded,NPT ends,V type,3-way ball valve,etc.Surely we can design them by customer's special requirements.