... Material: Cast Iron, Ductile Iron, SS, WCB Certification: ISO, CE Butterfly Valve Lug TypeISO9001 certifiedCE approvalAWWA C504 passedFeature: 1. Design Complies with ... : Cast Iron GG25, Ductile Iron GGG40, GGG50, Stainless Steel ASTM A351 CF8, CF8M, CF3, CF3M, Carbon Steel ASTM A216 WCB4. Disc: NBR ( Buan ... and so on.For catalog, Pls visit www.metalvalves.com Butterfly Valve Lug Type