00:16 #UPVC valve #BALLVALVE pvc double union electric ball valve
00:17 #back pressure valve #UPVC valve
00:16 #back pressure valve #Pressure safety valve
00:16 #electric ball valve #UPVC valve
00:16 #electric ball valve
00:15 PVDF ball valveelectric ball valve
00:17 #valve PVDF ball valve
00:16 #union valve Diaphragm valvedouble union Diaphragm valve