Double-eccentric center butterfly valve China Deyuan Marine Fitting Co.,ltd are leading supplier of different type of marine valve,we can offer marine gate valve,marine globe valve,marine butterfly valve,marine check valve etc with GB standard,JIS standard,DIN standard,API.ANSI,BS standard etc.Pls contact us for more details. Parts name Product type Carbon steel type Allig steel type Stainless steel Type(P II) Stainless steel 304 (R)316 body WCB C5 High Ni.Cr steel Cr Ni Ti steel Cr Ni Mo Ti steel Butterfly board WCB C5 High Ni.Cr steel Cr Ni Ti steel Cr Ni Mo Ti steel Valve shaft Cr stainless steel Cr Mo V Stainless steel Ci Ni Ti steel Cr Ni Ti steel Cr Ni Mo Ti steel Sealing face Hard seal Iron-based alloy Iron-based alloy Co W alloy Cr Ni Mo Ti steel Soft seal NBR,PTFE Different types of butterfly valve can be offered,pls contact us for more details 275N CE approval inflatable life jacket CO2 fire extinguishing system Marine horizontal/vertical oil fired boiler Marine air compressor marine centrifugal pump marine hydraulic steering gear Hydraulic capstan Tunnel thruster/bow thruster