... valve body etc Material: Stainless steel, duplex, nickel alloys, etc. Butterfly valve body1. Meterial: stainless steel 316L, CF3M2. Process: investment ... its own products characteristics and technical superiority, specified in producing valves, pumps, vehicle fittings, marine fittings and engineering mechanical accessories ... , Monel alloy, cobalt-base alloy, and Iron-base alloy. Butterfly Valve Body