JIS F 7371 5K Bronze Swing Check Valves-ဒီဇိုင်းစံ- JIS F7371-1996Test Standard- JIS 7400-1996Hydraulic Test Pressure- Body-1.05Mpa၊ Seat-0.77Mpa~0.4MFlange အရွယ်အစား- JIS B22K220.4MFlange အရွယ်အစား
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