... valve Brass ball valve: 1,Size: 1/4".3/8',1/2',3/4',1',11/4',11/2',2',21/2,3',4'2,Certificate: ISO9001 , CE 3,material: brass body , ... : BSP,NPT6)opening /closing tests:20000times Anti-Oxygen glue applied to join body &bonnetSuitable medium: water , non-causticity liquid , ... during the period time of production. we are able to provide you test certificate and mill certificate if required.Production ...