DKZ40H|DKZ40H-40C|DKZ44H-64C真空闸阀产品说明:主要性能规范 Chief property and specification焊接式真空闸阀-试验压力 Test pressure公称压力PN/MPaNominalpressure试验压力/MPa Seal test壳体强度试验Shellslrenght test上密封试验Back Seal test密封试验Seat…
DKZ44H|DKZ44H-16C|DKZ44H-25C真空闸阀产品说明:主要性能规范 Chief property and specification焊接式真空闸阀-试验压力 Test pressure公称压力PN/MPaNominalpressure试验压力/MPa Seal test壳体强度试验Shellslrenght test上密封试验Back Seal test密封试验Seat…