MSNL VALVE Duplex stainless steel trunnion ball valves for marine and marine applications. The end user is COSCO Marine Equipment Co., Ltd. The materials commonly used are duplex stainless steel 2205, super duplex stainless steel 2507, 4A, 5A, nickel aluminum bronze, aluminum Bronze, tin bronze, C95800, C83600, B62 and other materials, duplex stainless steel trunnion ball valve has good corrosion resistance, long life, simple operation, easy installation and other advantages. Duplex stainless steel trunnion ball valves have a large number of markets and applications in the future