... :DN25~DN3500 Structure:butterfly valve CE,API,ISO,ABS high pressure steam butterfly valvesSize Range: DN50~DN2500Class Range: 150LB-900LB/PN1 ... valveProducts: We can produce gate, globe, check, ball and butterfly valves with the materials of ductile iron, carbon steel, alloy steel ... , API, BS, DIN, JIS etc. We can offer special standard valves to our clients on your request.Certificates: We have held ...