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XY series of wide range of piston pressure meter is my company in accordance with the latest "verification regulation of piston pressure gauge" requirements of the new R & D design and manufacturing.As the key parts of piston pressure gauge with high hardness and low temperature linear expansion coefficient of tungsten carbidematerial, thereby improving the wear resistance of the piston, thepressure deformation small (negligible), the performance is extremely stable. The working medium piston using sebacic acidisooctyl two, so that the pressure gauge with high sensitivity. The use of new materials, new technology, new technology, so the technical index of piston pressure gauge has been greatly improved. It is widely used to test digital pressure gauge, precision pressure gauge, pressure transmitter, pressure sensor, pressureinstrumentation.