Quick fitting ball valves 1.CE,WATERMARK,PATENT,ISO9001:2008 ... Ltd was established in 1993,Shenghong manufacture standard valves and fittings with thread for more than10 years, At ... recently3 years, Shenghong develop and DIY new patent products-Push fit fittings/valves, (CE, WaterMark,PATENTapproved),Makes ... America,Germany,Korea,Algeria,Bangladesh,etc. Threaded and quick fitting ball valves