... : Cast Iron, Ductile Iron, SS, WCB Certification: ISO, CE Butterfly Valve Lug TypeISO9001 certifiedCE approvalAWWA C504 passedFeature: 1. Design Complies with ... A351 CF8, CF8M, CF3, CF3M, Carbon Steel ASTM A216 WCB4. Disc: NBR ( Buan-N), EPDM, VITON, PTFE5. Shaft & Pin: SS410, SS416 ... so on.For catalog, Pls visit www.metalvalves.com Butterfly Valve Lug Type