... BS2080 DN50-250 Materials: Cast Iron,Carbon Steel,Vulcanized NBR DN50-250 Cast Iron Y-Strainer BS2080 DN50-250 Design and Manufacture conforms to ... mainly produces Gate valve, globe valve, butterfly valve, check valve, fire valve, storm valve, air pipe head and each kind of ... certification, ABS and also acquire certifications of several classification societies. Cast Iron Y-Strainer BS2080 DN50-250